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

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2
votes
0answers
26 views

What is considered to be night?

I have always understood the definition of "night" ("leilah") when the day is for sure over and we've passed through "bein hashmoshos" completely, is when there are 3 visible stars and "hiksef elyon ...
3
votes
1answer
159 views

What rabbi recommended that American Jews skip Tachanun on Thanksgiving?

A friend of mine told me about a Conservative rabbi from JTS who recommended that American Jews not say Tachanun on Thanksgiving. Who was this rabbi, and is there a link to the text of this opinion so ...
5
votes
3answers
119 views

How much time should one spend on learning Torah a day

If one is awake sixteen out of 24 hours a day , how much should he learn out of those hours. Sources are appreciated .
3
votes
1answer
57 views

Source for Memorial Lights in Synagogue [duplicate]

What is the source for having memorial electric lights usually affixed to plaques that are found in many shuls to remember the yahrtzeit of relatives? Is this an old minhag or of relatively recent ...
0
votes
0answers
21 views

What is the talmudic source that a kinyan requires gemirat da'at?

I recall learning that for a transaction, where one person acquires something from another, to take place there is a requirement of gemirat da'at. Meaning that the person choosing to relinquish the ...
2
votes
0answers
23 views

Choosing a “Posek” [duplicate]

How does one go about choosing his own personal Posek(halachic authority) Sources , if available , are appreciated.
5
votes
2answers
139 views

Is every fourth step in EY a mitzvah?

i've heard a rav saying that every fourth step you do in Eretz Yisrael is considered a mitzva. does someone have a sources for this?
1
vote
1answer
36 views

Milchemet mitzvah b'yameinu

I heard recently a certain rabbi say that "nobody disagrees that [our "war" to conquer Israel] is a milchemet mitzvah." What sources are there, either way, for conquering Israel today being milchemet ...
6
votes
1answer
143 views

What's this about a magical spitting bird?

In Christopher Hitchens's memoir Hitch 22, this passage caught my eye: In her preface to his collection of essays The Non-Jewish Jew Tamara Deutscher, widow of the great Isaac, relates the story ...
0
votes
0answers
23 views

Biographical details of Rav Gidel?

I have seen many statements in the talmud such as 'Rav Gidel said that Rav said...". I would like to know where I can find some biographical details of the life of Rav Gidel. Are there published works ...
0
votes
0answers
52 views

People who discovered God on their own

Chazal give a list of people who discovered God on their own. Does anyone know where this list is? I saw it a while ago but can't recall where.
0
votes
0answers
30 views

People who discovered God [duplicate]

There is a list of people who discovered God on their own somewhere in chazal. Does anyone know where it is? I saw it a long time ago and cannot reacall where.
3
votes
0answers
51 views

Is there a public domain floorplan of the Beis Hamikdash

Is there a public domain floorplan of the Beis Hamikdash? I'm looking for something like
2
votes
2answers
84 views

What is the source of the prohibition against “eating or drinking while standing”, mentioned in the Kitzur Shulchan Aruch?

The Kitzur Shulchan Aruch in 42:2 states that - "One shouldn't eat while standing and not drink while standing." Now as I understand, the Kitzur (written by Rabbi Shlomo Ganzfried) is a summary of ...
4
votes
0answers
34 views

Looking for a Chazon Ish about developement of Minhagim

It has stuck in my head for a while now - roughly quoted as saying that one shouldn't mock minhagim that have developed in klal yisroel even if the origin seems dubious - as Hashem wouldn't allow ...
3
votes
0answers
27 views

Reincarnation in the Hechalot Texts

This answer claims that the idea of reincarnation is found in the Hechalot texts. Is this indeed the case, and if so, where? According to R. Aryeh Kaplan in Meditation and Kabbalah reincarnation is ...
0
votes
1answer
28 views

Did Kayin offer up honey?

I recall learning somewhere that Kayin's offering was honey, produced from fruit (dates or figs). What is the source for this approach?
4
votes
3answers
106 views

Where does it say Joseph (Yosef) is a Tzadik?

Noach we know of course, but where exactly is Yosef called a tzadik? I keep seeing people say "as we know, Yosef is called a tzadik" but what is the exact source?
3
votes
0answers
68 views

Proof that calling upon deceased righteous people is polythiesm

My assumption is that in the Jewish faith, if someone were to call upon a righteous person who is not alive for help, that would be considered polytheism. Are there any explicit verses in the Torah ...
3
votes
2answers
66 views

Source for Rabbis being able to say not to do a Deoriata

What is the source for Rabbis being able to say that one is not allowed to do a mitzvah deorita? Examples that come to mind are blowing shofar on Rosh Hashana on Shabbat, lulav on Sukkot (at least ...
-1
votes
1answer
46 views

The words מעשה אבות סימן לבנים

Where do the words מעשה אבות סימן לבנים come from?
2
votes
1answer
46 views

The Medrash and Gemara about Hoshana Rabbah

I read on shirat devorah the following: 1) The Midrash tells us that G‑d told Abraham: “If atonement is not granted to your children on Rosh Hashanah, I will grant it on Yom Kippur; if they do not ...
2
votes
1answer
312 views

Vilna Gaon, Gog and Magog war and Hoshana Rabba

1) I read on Soul Mazal, the following: "...The Vilna Gaon on the Mechilta (Shmos 14:20) says that the Gog U'Magog war shall begin three hours before "Hanetz Hachama" (crack of dawn) on Hoshana ...
7
votes
1answer
60 views

Hakhel: Source for leader of generation replacing king

As this is (or would be) a hakhel year I was doing some reading up on Hakhel and came across the following statement in a chabad.org article: If there is no king – as was the case in the hundreds ...
1
vote
0answers
84 views

Sources that permit applying sunscreen on shabbos?

Since it's put on to prevent medical conditions, are there recognized halachic authorities who say that applying sunscreen (a cream NOT lotion) is muttar (permitted) on shabbos?
3
votes
2answers
95 views

What is the source for the idea that doing some good thing 3 times constitutes a vow?

What is the source for the idea that doing some good thing 3 times constitutes a vow? I looked through Hilkhot Sevuot and Nedarim, and in the Entziklopedia Talmudit under Hazaka, and I could find no ...
1
vote
0answers
70 views

Are there any sources that say to wash hands with soap after the bathroom?

Are there any sources in Rabbinic literature that mention washing hands with soap after using the bathroom? I.e that just using the cup (נטילת ידים) isn't sufficient. An explicit statement would be ...
0
votes
1answer
135 views

What is the source for the role of the Levi in the Torah service?

Torah and Talmud discuss the role of the Levi in the temple. There seems to be no source for the role of the Levi (going up to the Torah second, after the Cohen) in today's Torah service. Where did ...
1
vote
1answer
68 views

What do the letters of Teshuvah stand for?

I found online that Teshuvah stands for: תמים תהיה עם ה' אלקיך שויתי ה' לנגדי תמיד ואהבת לרעך כמוך בכל דרכיך דעהו הצנע לכת עם אלוהיך Is there any source for this?
3
votes
0answers
19 views

Where are we commanded to light candles Fri night? [duplicate]

The bracha for lighting candles Friday night is "who has sanctified us with his commandments and commanded us to light the lamp of Shabbat." What is the source for the commandment? While we are on ...
1
vote
0answers
41 views

Sources on printing Shem הוי”ה in Siddurim

This post discusses the fading custom of writing the Tetragrammaton in siddurim with the י–י digraph, rather than the increasingly common full spelling, which I will not put here, as I suspect that ...
1
vote
1answer
48 views

When was the term “Next World” (עולם הבא) first used in Jewish literature

In modern Jewish literature and folklore the "next world" (עולם הבא) is mentioned multiple times. In contrast, it is not mentioned (AFAIK) at all in the Torah. So where/when did this start?
0
votes
0answers
33 views

Tallit katan & gadol

What is the source of the requirement to wear a large tallit (where a small tallit is being worn)? Thank you Ketivah v’chatima tovah
2
votes
0answers
29 views

Hataras Nederim Erev Rosh HaShanah

What is the earliest makor (source) for making hataras nederim erev rosh hashanah in front of 3 people with a long nusach? It appears to be a rather "late" minhag. What is the first source? Also is it ...
8
votes
2answers
108 views

Source for a story: Rambam paskening people out of heaven

I'm sorry to ask a source-seeking question (because I don't like seeing them myself), but I'm at a loss here in trying to find what I think is a theologically important Hassidic story. The story goes ...
6
votes
4answers
580 views

Source that we don't know how God judges people

I wrote in this answer, "We can't possibly know how God judges people after they die." I was making the point that the way we live our lives should be according to halacha but we can't possibly know ...
1
vote
1answer
45 views

Did R. Shlomo Yosef Zevin provide sources for his stories?

In a letter to R' Shlomo Yosef Zevin, the Lubavitcher Rebbe asked Rabbi Zevin to include sources for the stories he compiled in his Sipurei Chassidim. You can see parts of the letter (printed in ...
5
votes
2answers
123 views

Does Judaism require burial of the dead?

Does Judaism require burial of the dead? What Biblical passages mandate that? Can grave sites be reused after some time (e.g. 200 years) ? I am asking this because the practice of burying the dead in ...
3
votes
1answer
81 views

Source for Groom's Immersion in Ritualarium (mikveh)

What are the earliest sources referencing the custom of groom to immersing himself in a mikveh before his wedding? This custom is referenced in Kitzur Yalkut Yosef (nisu'in v'shidduchin: 3:11): ...
-1
votes
4answers
83 views

the King is in the Field

What is the source of the expression that during the month of Elul the King is in the field? I have seen this on many occasions but could not find any source.
1
vote
1answer
37 views

From where do we know that after 70 years old we cannot complain about the death's age

I heard that after 70 years old, we have only bonus years. What is the source for this?
0
votes
1answer
38 views

Source for Chizzuk Gemara

Mori V'Rabi HaRav Schachter gave a speech at YU last week and in it said that there is a Gemarah that says that people who are learning Torah and are keeping Mitzvos also need Chizzuk. Where is this ...
0
votes
1answer
37 views

Temple Mount and Tefillah

On Aish.com, I saw the following: הר הבית הוא שער השמים - The Temple Mount is the gateway to heaven. כל תפילה עולה דרך מקום זה - All prayers ascend from this spot. Does anyone know where this line ...
1
vote
1answer
89 views

Sources for Holding One's Left Hand in Right Hand During Prayer

What are the earliest sources for the practice of holding one's left hand in one's right hand during prayer? (particular during the Ammidah). The Talmud Shabbat (10a) notes a practice of holding ...
-2
votes
1answer
85 views

Rabbi Yonasan Eibshetz on the Messiah and Redemption

The BIN says the following: "Rabbi Yonasan Eibshetz in his book Ya’aros Dvash states, 'At a certain moment the time will come when the Messiah should have already arrived but the redemption has not ...
1
vote
0answers
40 views

Source for requirement of 3rd party hechsher? [duplicate]

When you eat another Jew's food, you are entitled to rely on him for the kashrus of the food. By that reasoning, if he opens a restaurant, and you know him to be Yarei Shamayim, you shouldn't need ...
3
votes
1answer
79 views

Talmud reference - eagles approaching nests

From the News, it states "Nachman concluded by recounting a teaching from the Talmud .... The eagle approaches his baby eaglets in the nest very slowly. He makes sure that they notice him gradually, ...
6
votes
1answer
65 views

Who added on the words לאלתר לחיים טובים ולשלום to the greeting לשנה טובה תכתב ותחתם?

Orach Chaim 582:9 - The Rama brings in the name of the Tur that on Rosh Hashana one should bless his friend & family לשנה טובה תכתב. Be'er Hataiv says that one should say לשנה טובה תכתב ותחתם. ...
8
votes
2answers
140 views

Earliest halakhic sources for wearing both Rashi and Rabbenu Tam tefillin simultaneously?

Orach Chayim brings that pious men should wear both Rashi and R. Tam tefillin at once when davening (34:2-3). Do we know what the earliest halakhic sources recommending this are, and their reasoning? ...
1
vote
1answer
62 views

Source and details about not showing the shape of the body

I heard that tight clothing on woman is not permitted, Something like It shows the shape of the body. Is this true? what does this mean practically? Sources please