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

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6
votes
0answers
62 views

Mental Telepathy

In Rabbi Immanuel Schochet's introduction to the fundamentals to proving religion. He mentions mental telepathy as a phenomenon that although uncommon does exist. ...
3
votes
1answer
76 views

Graphology - sources that permit or forbid it

I saw a orthodox Jewish newspaper that has a column on graphology. Are there any sources that discuss graphology, pro or con? Is it hocus pocus? Is it similar to palm reading?
1
vote
0answers
48 views

Source for an Aggadah about Moshe feeding a bird

I was reading a book called "Shylock" by Hermann Sinsheimer and he made reference to a story from "the Jewish Talmud." I don't know to what he is referring. I looked online quickly and found someone ...
15
votes
3answers
2k views

Are there any sources that prohibit childhood vaccinations?

The consequences of depressed childhood vaccination rates in some American communities, in the form of a building measles outbreak, have been in the news lately. All public schools and most private ...
2
votes
1answer
33 views

Seeing is believing: proof from Yitro?

I have heard a proof that hearing is nothing in compared to seeing, and the proof is from Yitro: that even though he had heard about all the great miracles that had occurred to the Jews and their ...
0
votes
0answers
39 views

Earliest sources for hagalah

What is the earliest source explaining how to do hagalah? What is the earliest place we see detailed instructions for the hot rock method as opposed to the clay/dough method? To elaborate: If you ...
2
votes
1answer
59 views

Rambam on Sacrifices

I seem to recall hearing that the Rambam stated somewhere that animal sacrifices were not necessary from G-d's point of view, but that He decided to institute them because of what the Israelites were ...
3
votes
1answer
239 views

What is the source for not leaving onions overnight and why don't some care?

This question mentions that one mustn't eat onions and garlic that have been left overnight, because of danger: Eating onions or garlic left overnight - there are ways around this, and some are ...
6
votes
2answers
89 views

What's the source that a Cheresh, Shoteh and Kattan are free from Mitzvos?

There are three categories of people who are free from doing Mitzvas: Cheresh - a deaf-mute Shoteh - a mentally incompetent person Kattan - a child. How do we know that they aren't liable for ...
4
votes
2answers
109 views

Palm-reading in Judaism

Are there Jewish sources which affirm the validity of the art of palm-reading? If yes, how does this work. i.e. what is the underlying idea behind it. (the reason I ask, is because I actually met ...
13
votes
1answer
175 views

Did any classic rabbinic sources discuss static electricity?

Not much more to add here, I've just always wondered if static electricity was discussed in any Chazzal or Rishonim. Someone from those times must've gotten a good zap and I'm wondering what they had ...
11
votes
4answers
270 views

Is there a source in the gemara for “Blei Gissen” (pouring lead)?

A recent article in the 5 Towns Jewish Times claims Blei gissen, the technique of pouring lead to nullify ayin ha’ra, the poisonous evil eye, has its source in the Gemara ... In his critique of ...
4
votes
2answers
417 views

What is the source of Shomer Negiah?

What is the mekor for the very well known restriction of physical contact between men and women? Is it a biblical or rabbinical prohibition?
3
votes
1answer
59 views

Nusach Ashkenaz in Israel and Abroad

Over the years, I've noticed a number of differences between Ashkenaz siddurim published in Israel and those published outside of Israel. These differences include (but are not limited to): Order of ...
0
votes
0answers
22 views

Rocks on Gravestones [duplicate]

Why do Jews put rocks on Gravestones, especially on great Gadol Hadors, like for instance Rabbi Feinstein, is there something in Halacha that explains why it is done?
5
votes
0answers
78 views

'Agunoth and Mamzerim after the Holocaust

What have Posekim decided regarding families that were torn apart as a result of the Holocaust, particularly with respect to marriages where the husband was taken and never seen again (but not ...
4
votes
0answers
62 views

Different endings of Yishtabach

I have heard at least four nuschaos (liturgies) for the very end of Yishtabach between habocheir b'shirei zimrah (who chooses musical songs of praise) and chai/chei* haolamim (life/life-giver of the ...
2
votes
2answers
127 views

Zoroastrianism .v.s. Judaism [closed]

Does anybody think Zoroastrianism inflenuced Judaism, cause online people say Zoroastrianism was the first monotheistic religion http://avesta.org, and that Judaism copied it, also that Zoroastrianism ...
7
votes
1answer
69 views

Legend About Rashi

In the book "Rashi and Maimonides" (pg 302), I found the following (paraphrasing): Another story has it that Rashi sat fasting for 613 days to purify himself for the task of commenting on the ...
2
votes
1answer
61 views

What happened to Moshe's Mateh (stick)

I once heard that Moshe's stick was used as the middle pole that held the beams together in the Mishkan that miraculously bent twice (Rashi, Shabbos 98b). Does anyone know a source for this?
-3
votes
1answer
39 views

Zohar and Shabbos Yoma D’Nishmasa

The Zohar calls Shabbos Yoma D’Nishmasa, because it is the day of the soul, not the day of the body. Do anyone know where the source for this zohar is located?
-5
votes
1answer
44 views

Where in Avnei Nezer can I find this statement about Shabbos?

The Avnei Nezer writes that we the read the following posuk in the haftarah on Yom Kippur morning:.אם תשיב משבת רגלך. The superficial meaning of these words are, “If you restrain your foot because it ...
3
votes
1answer
74 views

Rav Hirsch and zachor

Rav Shimshon Raphael Hirsch says that the word zachor (in Exodus 20:7), meaning remember, is the statement telling us "to keep the Shabbos in our minds and hearts, and give verbal expression to its ...
-3
votes
1answer
102 views

“There is no question in the world whose answer cannot be found in Torah”

Rabbi Yitzchak of Volozhin says, "There is no question in the world whose answer cannot be found in Torah." Does anyone know where the source for Rabbi Yitzchak of Volozhin's statement can be found?
-3
votes
1answer
69 views

Everything is in the Torah

Someone mentioned that, "There is nothing on earth that is not hinted at in the Torah."* Does anyone know where is statement can be found?
-3
votes
1answer
49 views

Who Is Rabbi Eliezer Yosef ben Rabbi Yitzchak HaLevi Letterberg לטרברג?

Someone told me that's it's written on the tombstone of רבי אליעזר יוסף בן רבי יצחק הלוי לטרברג: "הרבץ תורה ברבים ולמד וחזיר בעל פה למעלה מארבעת אלפים פעם מסכת ביצה וראש השנה" Who is רבי אליעזר יוסף ...
-3
votes
1answer
49 views

Elazar ben durdayah and the Metaphors

The Gemara in Avodah Zarah (17a) says: “When Elazar ben durdayah was at the moment of the onset of cohabitation, [the harlot] blew with her mouth and said to Elazar, “Just as this current of air ...
8
votes
2answers
130 views

The concept of the “Tzadik” in Chasidut

I've recently started to learn about Breslev Chasidut and was amazed by many great advices of Rabbi Nachman zt'l but I am very confused to read things about the so called Tzadik of the Generation e.g. ...
4
votes
1answer
52 views

Source for statement that we don't know how to rebuke today

I recall hearing that someone, perhaps R' Yisroel Salanter, said that today we do not know how to respectfully give rebuke, and therefore we are all in the category of onus regarding the mitzvah of ...
-1
votes
1answer
70 views

Rav Chaim Friedlander and Avos

In Avos (1:14) it says, If I don’t reprove myself and push myself to do mitzvos, who will do it for me? Who will admonish me and encourage me to do what is right? Someone mentioned that Rav Chaim ...
0
votes
1answer
38 views

The Alshich HaKodosh and temporal

I heard someone mention the following: The Alshich HaKodosh says, "How great is folly of those people that involve themselves in the physical, material and temporal. Because we have seen a generation ...
1
vote
0answers
38 views

Ramban and the generations

I heard someone mention the folowing: The Ramban in the writings on sefer koheles make an interesting diyuk. Koheles (1:4) tell us, “A generation goes and a generation comes.” The Ramban tell us that ...
2
votes
1answer
54 views

Sefas Emes and your mission

Someone mentioned that the Sefas Emes quotes in the name of the Chiddushei HaRim on that Mishnah (Avos 1:14), אם אין אני לי מי לי, וכשאני לעצמי מה אני, ואם... The Sefas Emes says, Every yid has ...
0
votes
0answers
69 views

Maharal Diskin on Sefer Devarim

I heard someone mention that the Maharal Diskin say the following explanation on this posuk: וּבָאוּוּבָאוּ עָלֶיךָ כָּל־הַקְּלָלוֹת הָאֵלֶּה וּרְדָפוּךָ וְהִשִּׂיגוּךָ כָּל־הַקְּלָלוֹת הָאֵלֶּה וּרְדָפוּךָ ...
6
votes
0answers
34 views

Can the Mishnah be interpreted according to both peshat and drash?

There's a statement attributed to the Vilna Gaon (quoted in the introduction to Binas Mikra and in several other places) that the Mishnah can be interpreted through 'derash' and 'peshat', just like ...
4
votes
2answers
124 views

If one gives a food gift on Shabbos, does the one who receives it need to use it on Shabbos?

The Halacha is that one may give a food gift to another on Shabbos. (See Dose of Halacha for more details). If I give a bottle of wine, do they need to open it on Shabbos, or can they choose to keep ...
6
votes
3answers
541 views

From where do we know that sexual intercourse with a non-jewish woman is forbidden?

From where do we know that a jewish man cannot have sexuel intercourse with a non-jewish woman? What say the Kabbala about this ? Is it related to dark forces, "qelipoth"?
5
votes
1answer
155 views

Ring and kiddushin

Where did the concept of the chosson (groom) giving the kallah (bride) a ring, specifically, for kiddushin (i.e. under the chuppah) come from?
4
votes
2answers
92 views

Prishus in Jewish Marriage

I know that there is a concept of prishus (going beyond the letter of the law, and abstaining from things that are really allowed) within Jewish marriage, but what exactly does this constitute, and ...
2
votes
3answers
94 views

What's the source for the line “Nebach an Apikoirus”?

I've heard that R' Chaim Brisker said that "Nebach An Apikorus is Oichet an Apikorus" (A "poor" heretic is still a heretic). What's the source and what does it mean? Does it mean that, for example, ...
0
votes
2answers
146 views

baby crying at the time of mila is an עת רצון

Someone once told me that when the baby cries at the time of mila it's an עת רצון, a time of will. Does anyone know the source for this?
1
vote
1answer
42 views

Eliyahu HaNavi and bris

Someone once told me that when Eliyahu HaNavi comes to a baby's bris, everyone who is presently there is forgiven for their sins. Does anyone know the source for this?
4
votes
1answer
125 views

Should single men not sit at corner of the table?

I heard that there some say that single men should not sit at the corner of the table, because it could lead to someone staying single forever. Is there a source for this idea?
7
votes
1answer
103 views

Where does the Maharsha mention the Bermuda Triangle?

Someone once told me that the Maharsha talks about Bermuda Triangle in meseches berachos. Does anyone know where the Maharsha speaks about it?
1
vote
0answers
20 views

reading secular lecture or knowledge [duplicate]

Is one allowed to read secular lecture/ knowledge (i.e. technology, science or history etc.) for pleasure reading? Does the Torah or halacha explicitly tell us what one should distance himself from ...
5
votes
1answer
157 views

Why is the Miracle of Oil mentioned so much later than records of Chanukah celebrations?

The miracle of oil isn't really mentioned until the Talmud, and is absent from all earlier sources for Chanukah like the Books of Maccabees, Josephus, and others. I have seen historians claim that ...
4
votes
2answers
134 views

Whence the minhag to light in shul by day?

In pretty much every shul and yeshiva I've been in has lit Chanukah candles by shacharis, the same number of candles that were lit the night before. What is the source for this custom, and why is it ...
3
votes
1answer
211 views

Could the minhag of lighting menorah in Shuls have developed from when guests would stay in Shul?

Could the minhag (=custom) of lighting menorah in synagogues have developed from when guests would stay in the synagogue? Does anyone bring this as a source for the minhag? If so, would it not apply ...
6
votes
2answers
86 views

What is the valley of deep darkness (or shadow of death) in Psalm 23?

In Tehillim 23, David says "Even when I walk in the valley of darkness, I will fear no evil for You are with me". Someone asked me if this "valley of darkness" is metaphorical or physical and, either ...
6
votes
0answers
44 views

Did Prof. Rabbi Umberto Cassuto have any insight behind the biblical character Yehudah?

I am the great grandson of Umberto Cassuto, Benyamin Enzo Rocca, and 5 days ago my wife and I were blessed with a son (3rd child). With his upcoming bris in a few days I would like to know if anyone ...