Questions seeking sources for a given practice or idea, or seeking the location of a specific source.

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1answer
51 views

Chafez Chayim checked copies of (which) books?

I've heard that the Chafetz Chayim inspected each page of each printed copy of the Mishna B'rura to be sure that it was printed correctly (with no large ink splotches or the like). Is there a ...
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2answers
167 views

Science of the Rishonim on “celestial spheres”

In the writings of the Rishonim, it is not uncommon to see explanations of pesukim or of aggadic concepts using the "celestial spheres" model of the universe. The Rambam in particular uses the idea ...
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1answer
168 views

Women and Tefillah - per the Rav

I remember a long time ago hearing that the Rav (Rabbi Joseph B. Soloveitchik (1903–1993)) held that women should pray three times a day. Can anyone verify this, and what is the reason/source ...
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1answer
108 views

Where is the Rabbinic prohibition of tattoos discussed?

According to the gemara in Makkos 21a, it seems that the biblical prohibition of tattoos only extends to tattoos made for religious purpose. However, the vast majority of poskim all seem to imply that ...
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3answers
104 views

Amailut (trying hard/ toiling) to learn Torah

What's the source for amailut (trying hard/ toiling) to learn Torah? Is there any benefit to try learning Torah on your own without help, when you can learn Torah through asking others and looking ...
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1answer
60 views

“For Zion's sake” - Where in the liturgy?

Is Isaiah 62:1 found anywhere in the liturgy? I seem to remember a reference or two in Selichot, but I can't find it there now, nor can I find it anywhere else.
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1answer
187 views

Customs surrounding fasting when a sefer torah falls to the floor?

Based on this question I would like to know what the earliest source for fasting when a sefer torah falls comes from? Is is true that if a person is in the room but turns away so as not to see it ...
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1answer
202 views

Does anyone have a proof text that animals *don't* have spirits?

I've heard it said that animals don't possess a רוח However, Ecclesiastes 3:21 uses the phrase רוּחַ הַבְּהֵמָה. Is there any text that indicates that animals don't possess a spirit? Edit: Upon ...
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2answers
276 views

Is there a source that the Messiah can die and return?

Is there a source in Judaism that indicates that Moshiach (Ben David, not Ben Yosef) will die before having fulfilled his role and then return to posthumously achieve it?
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1answer
45 views

Who wrote the “Seder Vehilchos Korban pesach rishon beketzarah”

In Pesachim 57b (right before the 5th chapter) there is a page containing a summery of laws pertaining to the Korban Pesach. Who wrote it?
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97 views

Where was it first said that “The generation is diminishing and diminishing”? (הדור הולך ופוחת)

in Hebrew we have an adage that says “הדור הולך ופוחת” ("Hador holekh wepocheth"), meaning “the generation is getting more and more diminished", which may have meant that there are fewer and fewer new ...
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97 views

Where does the concept of “shirayim” come from?

Please explain the concept of shirayim (literally, leftovers) wherein the followers of a chassidic Rebbe will receive portions of his food to it, these leftovers are considered holy or special in some ...
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1answer
146 views

(Seeking Original Source in Yechave Daas ) Limiting instances of doing something 3 times becoming a neder

According to Harav Musafi Shelit"a (Q&A 74259) (and I'm sure earlier sources), if you do a "Hanhaga Tova - good deed" three times you need Hatarat Nedarim. I believe Harav Ovadia Shelit"a in his ...
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2answers
73 views

Resources for “vertical learning”

New member and first question! I'm looking for resources for guidance in the possibly made-up term, vertical learning. What I mean by that is my learning often suffers from being hodge-podgey and ...
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1answer
230 views

How much must be eaten from the lechem mishneh

Inspired by following 2 questions: Not eating from the Lechem Mishnah Challah Loaves on Shabbat have a minimum size? When eating a Shabbos Seudah how much must the ones that are being yotzee from ...
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1answer
216 views

What is the source for Rambam's “physician's oath”?

A physician friend pointed out to me the Rambam's "physician's oath" (it doesn't look like an oath per se, but that's what it's called), which begins (in English): The eternal providence has ...
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3answers
274 views

Drawing with ink on your skin

Shalom, I have heard many times that there is a problem with drawing on your skin with ink. Can anyone provide sources on the topic? I would like to know things like what issur this falls under and ...
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1answer
148 views

Which of Moshe Chaim Luzzatto's works influenced Chassidut, Mussar, and Haskalah?

In Dovid Cohen (known as Rav Ha-Nazir)'s Wikipedia page, the following idea is attributed to him: He saw in Moses Hayyim Luzzatto the harbinger of this redemption, pointing out that the three ...
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1answer
218 views

Drinking the wine that spills over the cup during Kiddush

There is a widespread custom among the Jewish people to fill up their kiddush cup to the point that it overflows. This overflowing of wine symbolizes Hashems blessing overflowing in our lives. I was ...
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197 views

Origin of the allegory of the long spoons

A common version of the allegory of the long spoons tells how Rabbi Hayim Elhanan ben Yehudah Leyb Tsedek or Tzadikov (*1813, ✡1883) of Rumšiškės went to see the difference between Heaven and Hell. ...
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0answers
81 views

Minhag of bothering the chazzan on Simchas Torah

I have seen the custom of bothering the chazzan during the musaf service on Simchas Torah. I have seen people tie the chazzan's gartel to a chair, or try to move the chazzan to a diffrent place. I ...
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120 views

Which rabbi said “if a horse had the mind of Kant …”?

I recall hearing in yeshiva that one great rabbi -- I think one of the baalei mussar? once said: If a horse had the mind of Kant, it would author volume after volume of great philosphical works -- ...
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1answer
99 views

Source for this Remez expansion of יד שחט דם

There is an acronym for the liquids that make things able to be made ritually impure. The Halacha is in order for fruit and the like to be made ritually impure it has to be made wet with these ...
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252 views

Connecting Shas and Halacha

What resources are available to trace the connections from the Gemara to the Halachic codifications and the reverse? For example, how can someone learning Daf Yomi find the related Halachic rulings ...
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3answers
178 views

Are there any Jewish sources which discuss the existence of auras or energy fields?

Are there any Jewish sources which discuss the existence of auras or energy fields? Is it permissible to learn about them and be involved with them for healing purposes?
4
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1answer
185 views

Where is the source not to walk over someone because it stops him growing?

I have been brought up with the belief not to walk over someone because it can stunt their growth. Can anyone else here say where they have also heard of this? If yeah, where is the source?
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1answer
276 views

Sources for the world being round in the Gemara

Can anyone bring me proofs from the Gemara that proves the world was round-and that this was known 2000+ years ago? I have looked around and I can't seem to find any sources which prove this.
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2answers
66 views

Where can I find the Rav's hesped for R Chaim Ozer Grodzinsky?

I am looking for the text (in Hebrew) of R' JB Soloveitchik's hesped for R' Chaim Ozer Grozhinsky, unofficially titled "HaTzitz vehaChoshen" which was written before RJBS broke away from Agudah.
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2answers
225 views

Will we follow Beis Shammai in times of Moshiach?

I've heard a few times that in the times of Moshiach the Halacha will follow the opinion of Beis Shammai. What is the source and reasoning for this? Is it true? We will no longer follow Beis Hillel ...
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1answer
356 views

Reciting a Posuk representing your name at end of Shemona Esrei - source?

Many Sidurim mention in the name of the Shela that one should say a Posuk at the end of Shemona Esrei that begins and ends with the same letter as ones name. Does anyone know where in the Shela this ...
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2answers
146 views

Eruv around towns for the purpose of carrying

I was learning the first few chapters of Eyruvin, and I wondering which of the mishnas are the source (or inspiration more likely) for the idea of a string around an area that allows one to carry ...
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2answers
177 views

Source for not having picture taken

Is there any source, halachic or otherwise, for an aversion to having one's picture taken?
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2answers
90 views

Naming a child after two relatives

I once heard Rabbi Shmuel Niman, Mashgiach Ruchani of the Chafeitz Chaim Yeshiva, say that he had "recently learned" that it is improper to give a child parts of the names of two relatives. For ...
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1answer
81 views

Prohibition on paskening halacha when one is drunk

The Gemorah in Beitzah 4a says that Rav wouldn't give a drasha on Yom Tov after eating the seudah because when he would give a drasha he would be moreh halacha (give over halachic rulings) and this is ...
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2answers
153 views

What is the halachic source for the minhagim of mourning during Sefira?

What is the earliest halachic source for the minhagim of mourning during sefira? Note that this does not mean the story of R' Akiva, I'm talking about halachic references to prohibitions such as not ...
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1answer
88 views

Rashi's biography sources

I know that Rashi had daughters — either two or three — and no sons. I also know he was a vintner — meaning he made wine. I know he was a student of or student of a student of Rabenu Gershom. I guess ...
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3answers
117 views

Where and when is the earliest attestation of the word “mohel”?

Where is the earliest attestation of the word mohel for one who performs the act associated with a ritual circumcision? When was it written? What language is it? [Inspired by Why is there a ה in ...
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1answer
297 views

Zohar's knowledge about Earth's shape

I recently heard from a rabbi that people (in the Zohar's view) were standing on the Earth's sphere both above and below, and while it was day for some, it was night for others and vice versa. If its ...
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2answers
117 views

Story about “simple Teshuva” via never telling a lie

I read a story over shabbas from Tales of Tzaddikim, Bamidbar pg 251-252, Published by Mesorah Publications, and it quoted it from Sefer Chassidim, Siman 6407. I opened up my Sefer Chassidim and the ...
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2answers
106 views

Did HaShem “regret” creating someone/something

I heard once that it says somewhere in Chazal that there were certain things or people that HaShem "regretted" (had "charatah") in creating. Although I don't remember which examples were given or if a ...
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1answer
216 views

Do Jews believe the content of Maccabees (I-IV) is true?

This related question touches on the book of Maccabees. I was wondering if Jews believe the content of Maccabees (I-IV) is true, even though it is outside the canon. If any of the Rishonim or ...
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1answer
259 views

What is the original source that a soul is split in half before conception?

Does anyone knew of the original source (from a sefer) for the idea in this quote: "According to Jewish thought, a husband and wife were originally one soul before birth, split into two halves when ...
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1answer
100 views

Midrash on children and the letter shapes?

I've heard about a midrash that discusses a day when little children took over the study hall and, by interpreting the shapes of the Hebrew letters, articulated many of Judaism's most powerful ...
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1answer
717 views

What is the source of the Birkat Habayit?

What is the source of the text of the Birkat Habayit: I've seen them written on a hand, and some come with garlic, multi-colored beads, and some other strange objects. Inspired by: ...
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1answer
54 views

Source for Gemara about Gedalia

Where can I find the Gemara which this speaker is talking about ? In short, he quotes a Gemara which talks about Gedalia. Gedalia heard that Yishmael was coming to murder the people of the town but ...
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1answer
61 views

Counting years according to the solar calendar

I once heard there is an opinion in Rishonim (maybe Gaonim?) that says we count ones years of life according to the solar calender. So for example a boy would become bar mitzvah when he would turn 13 ...
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1answer
122 views

Source of “Legitimate pleasures” quote

A quote that sometimes appears on the internet is the following: "Everyone will be called to account for all the legitimate pleasures which he or she has failed to enjoy." It is usually attributed ...
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4answers
335 views

How do we know that God does not take human form?

Christianity believes that God takes human shape in the form of Jesus, and comes down to earth as a man. Of course, Jews do not believe that God ever takes the shape of a human, but how do we know ...
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2answers
116 views

Shechting non-Kosher animals

The question was asked: If someone for example is sick and must eat from a non-kosher animal. Must it be shechted (slaughtered) first like a kosher animal? I don't see any reason why it should, since ...
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1answer
67 views

Source and reason for throwing the Hoshanos on top of the Aron Kodesh

I have seen in many Shuls on Hoshana Raba after using the Hoshanos people throw the used Hoshanos on top of the Aron Kodesh. What is the reason and source for this Minhag?