Questions tagged [sources-mekorot]

Questions seeking sources for a given practice in general or in specific Jewish communities, alternatively seeking the location of a specific source of a teaching/idea/philosophy based on Torah writings.

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50
votes
29answers
4k views

About what were rabbis ahead of the times?

I have heard claims that experts in the world of Torah were significantly ahead of their counterparts in the world of natural science (or mathematics, or psychology, or…) in that they knew X (...
10
votes
6answers
932 views

Why a human Messiah?

I understand that Mashiach is going to be a human. What is the source for this, and are there any explanations why it must be so? Can't G-d Himself redeem us?
16
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5answers
4k views

Sources For Listening To/Not Listening to Non-Jewish Music

What are sources for it being allowed to listen to non-Jewish music and sources for it being prohibited?
7
votes
5answers
2k views

Source for the prohibition against Nivul Peh (foul mouth)

What is the source for the prohibition against Nivul Peh (using foul language)? Is it Biblical? Rabbinic? "Asmachta" (based on a principle derived from the Torah but ultimately not considered a ...
36
votes
7answers
3k views

Where does the concept of Gilgulim (reincarnations) in Judaism come from?

What is the source of Gilgulim (reincarnations) in Judaism? Are there people who disagree with its existence? Who was the first to mention it? What I am asking essentially is what is the historical ...
21
votes
4answers
3k views

What is the machlokes between the Gra and Ba'al HaTanya?

What is the famous argument between the Vilna Gaon and the Ba'al HaTanya in understanding the Sod HaTzimtzum? And what are some ma'areh mekomos in their works where this Machlokes is seen?
13
votes
5answers
7k 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
2answers
405 views

Targum Pseudo-Jonathan in Rabbinic Literature

The Gemara Megillah (3a) implies that Onkelos translated just the Chumash, whereas Yonattan ben Uzziel translated just Nevi'im: וא''ר ירמיה ואיתימא רבי חייא בר אבא תרגום של תורה אונקלוס הגר אמרו ...
10
votes
1answer
886 views

Explanation for couple not seeing each other before the wedding?

What is the source and reason for a couple not to see one another before the wedding?
10
votes
6answers
429 views

Do you have to know kol ha Torah kula?

Is there a requirement for a Jewish man to know the whole Torah (including every gemara, tosafot, Midrasch…) or is it OK to know the Halacha that is relevant to you and then to use the rest of ...
4
votes
2answers
1k views

Source for long payos

Where is there a source for having long payos ,and if there are sources what is the oldest source.? I am talking about the extra length besides for the halachic necessity. Like behind the ears or ...
11
votes
6answers
846 views

Scriptural evidence that angels have no free will

Judaism does not believe in the free will of angels. What is the scriptural evidence for that and since when has such belief been held within the Jewish community?
4
votes
1answer
353 views

A woman's singing voice when there are other singing voices

There is a famous Teshuva of the Sridei Aish, Rabbi Yaakov Yechiel Weinberg, that permits one to hear kol isha (a women's singing voice) when there are other people singing. Where is this Teshuva ...
3
votes
3answers
241 views

Studying Halachah daily required?

Read somewhere that one must be sure that in addition to any daily study of Tanach, Mishnah and Gemara, to study books of Halachah. Does anyone know where the source for this can be found?
15
votes
4answers
742 views

What is the source for the mitzvah of kiruv?

Is kiruv a mitzvah? Is it biblical or rabbinic? Is there any reason it should supersede other mitzvot? what are the sources in chazal and halacha relating to kiruv? related: Kiruv and halachik ...
14
votes
2answers
910 views

Would Adam and Chava have been permitted the tree of knowledge if they'd waited?

I've long been somewhat troubled by the episode with the tree in the garden, because it seems like it was necessary for man to acquire knowledge (how else could we enter a covenant and accept the yoke ...
13
votes
2answers
585 views

What is the origin of the custom to kiss a Mezuzah?

What is the source or origin of the custom to kiss a Mezuzah?
12
votes
1answer
2k views

Halachic justification to not pray the amidah before zman t'filah?

Some Chassidic courts are not makpid (careful) to daven the morning Amidah before z'man tefilah, although this seems to be a clear halacha. Are there any opinions they are relying on? I was once told ...
8
votes
3answers
601 views

What's the deal with all the washings?

Sometimes we wash with a cup, sometimes not; sometimes we wash twice, sometimes thrice; and not everyone agrees on method or pattern in all cases. Who says which ways we are supposed to wash, in ...
8
votes
2answers
329 views

Source for # times chai?

I often see donation requests with amounts in multiples of $18. I would like to know the source for giving charity of the numeric value of the Hebrew word chai (18) and its multiples.
4
votes
1answer
436 views

Where does it say that one must wear two layers on their head(one of the reasons for the black hat)?

I know that a reason for wearing a black hat is because one must wear two layers covering their head (Mishna Brurah 91:5) but am wondering if that Din is based in Kabbalah?
3
votes
2answers
643 views

What is the source for a woman's voice as ervah?

What is the source that a woman's (singing) voice is considered ervah?
30
votes
2answers
889 views

Matza on 14 Iyar

I have seen a custom (it seems to me primarily among Chassidim) to eat matza on 14 Iyar (known as Pesach Sheni). What is the earliest source for this custom? What are the reasons given for following ...
20
votes
4answers
5k views

If masturbation is so bad, why is it not in list of 613 Mitzvos?

If masturbation is, as stated in the Shulchan Oruch (Even HaEzer 23:1), "the worst sin in the Torah", then why is it not listed in any of the various lists of 613 Mitzvos and why is there no verse in ...
18
votes
1answer
426 views

Lechem Mishlesh?

(Based on Tosfot Pesachim 116a and Aruch haShulchan 274:5 I assume that the man did not fall on Yom Tov and double fell on Erev Yom Tov, and that this is why we have lechem mishne on Yom Tov.) When ...
8
votes
1answer
637 views

Origin of Spilling Wine by 10 Plagues

The custom among all Jews (as far as I know) is to spill a drip of wine for each of the plagues as they are mentioned in a list in the haggadah. This custom is not mentioned anywhere in the Talmud (as ...
7
votes
2answers
458 views

Why wine for kiddush?

Why do we use wine (or grape juice - fruit of the vine) when sanctifying Shabbat? How was it first determined that wine was holy and that it is used to satisfy and make holy the coming holiday or ...
1
vote
3answers
413 views

Are gedolei Yisroel fallible?

Is there a source to assert that the leaders of the Jewish people at any given time are always correct in how they lead (perhaps because their decisions are divinely inspired), or is it possible to ...
15
votes
1answer
1k views

Lo Yilbash: necklaces and rings

Is there are prohibition for men to wear rings, necklaces, earrings, bracelets or anything of the kind or would that go against the prohibition of "Lo Yilbash Gever Simlat Isha — a man shall not wear ...
8
votes
3answers
901 views

Is praising non-Jews actually prohibited?

The gemara Avodah Zara (20) explains that praising a non-Jew is a violation of "lo sechaneim", and this is quoted in the Rambam (Hil. Avodah Zara 10:6) and the Shulchan Aruch (Y"D 151, and Shach s.k. ...
6
votes
2answers
917 views

What is Ruach Rah

Right in the beginning of Shulchan Aruch we see this idea of "Ruach Rah". In regards to washing ones hands and all that comes before that -- not walking more than 4 amos without washing one's hands, ...
6
votes
5answers
595 views

Do Animals Have an Afterlife

What does Torah say about an afterlife for animals? Is there somewhere animals go after they die? Please include the sources of your answers.
14
votes
3answers
2k views

Does sorcery/black magic exist today?

The Torah She'bicsav and Torah She'ba'al Peh discuss sorcery/necromancy/witchcraft. Assuming that those activities were actually harnessing some sort of supernatural power in order to perform ...
16
votes
3answers
554 views

How do we know that we have free will?

Where in the torah does it state that humans have, and are entitled to in perpetuity, free will?
11
votes
3answers
764 views

Why does one have to put on Tefillin every day?

Technically, one should wear Tefillin all day. We don't, since we can't keep ourselves clean the whole day. But we still put it on once a day during Shacharis, since we can presumably keep ourselves ...
6
votes
5answers
431 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 ...
6
votes
2answers
469 views

Cairo Geniza Controversy

What are the arguments against using manuscripts from the Cairo Geniza? Are there any Seforim / articles that discuss this debate?
20
votes
5answers
2k views

Gezeira of Rabbeinu Gershom text

Does anyone know where I can find the actual text of the Gezeira of Rabbeinu Gershom? It keeps popping up in my learning, but only as being referenced, I would like to read that actual text.
17
votes
5answers
1k views

“Silk-Screened” Sifrei Torah

What are the halachic issues with Silk-screened sifrei torah? I am interested in a summary of concise halakhic rulings of multiple authorities on the prohibition or permissibility of HaRav Yitzchak ...
15
votes
3answers
507 views

Halachic Source for Women-Only Mikvaoth?

Some (actually many) Mikvaoth are designated for women's use only, generally for reasons of cleanliness. Is there Halachic literature supporting (or urging) this? (This question is not asking for ...
12
votes
1answer
414 views

Rishonim saying Ester took place during the second bayis

Elsewhere on this site, avi cited sources to the effect that, contrary to the Bavli (M'gila), the events recounted in the book of Ester took place after the second bes hamikdash was built. Do any ...
11
votes
1answer
1k views

May one propose with an engagement ring?

Are there any Halachic issues with giving a girl a ring while asking her to marry him? Are there any sources that discuss the sha'alah of safek Kiddushin, etc?
6
votes
2answers
942 views

Where are there discussions about Torah commands that nobody is known to have broken?

Where are there discussions about Torah commands that nobody is known to have broken? These discussions can come anywhere, from the Talmud to the Midrashim. One example I heard is from Devarim 21:18-...
5
votes
2answers
241 views

Source for Immersion after Biblical Niddah

Unlike other ritual impurities, which explicitly list various immersion or washing requirements, biblical niddah has no such explicit requirement in the written Torah ( to the best of my knowledge ) ...
4
votes
3answers
373 views

Shiur of “Miut Hamatzui”

A "miut hamatzui" is a phrased used to express a case where because of a small concern that something exists, or might happened, or does happen that the halacha is affected by this. An example is if ...
18
votes
5answers
792 views

Saying “Laberiut” “God bless you” or “Gesundheit”

Is there are source for saying "Laberiut" "God bless you" "Gesundheit" or any other response to a sneeze? In other words, are there posekim who mention it in Halacha?
14
votes
2answers
1k views

Dipping fingers in Havdalah Wine

What is the source or origin of the custom to dip one's fingers in the wine poured over the candle to extinguish it at the conclusion of Havdalah? As a side note, and a reason I'm tagging it this way,...
11
votes
0answers
81 views

Source for Geonic division of mitzvos

The Rambam and those who follow suit divide the 613 mitzvos into two groups, 248 positive mitzvos and 365 negative mitzvos. This is sourced from Makkos 23b. However, many of the Geonim (for example: ...
10
votes
2answers
471 views

No mitzvah to wear tefillin every day?

I heard that the Bet HaLevi and the Peri Megadim hold that there is no Mitzva for a person to don Tefilin everyday. Can someone source these opinions and explain exactly what they are meaning to say?
10
votes
3answers
3k views

A Convert taking on customs of ashkanazim or sephardim

When someone converts is there any determining factor on what minhagim (customs) they will take upon themselves in terms of Ashkanazim or Sephardim? Should it be dependent on the Beis Din they ...

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