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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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16
votes
5answers
3k 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?
9
votes
4answers
802 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?
47
votes
27answers
3k 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 (...
7
votes
4answers
1k 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
2k 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
2k 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?
11
votes
5answers
6k 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"?
11
votes
1answer
757 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?
5
votes
2answers
345 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 ...
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 ...
3
votes
3answers
199 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?
12
votes
1answer
1k 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 ...
12
votes
2answers
775 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 ...
12
votes
2answers
529 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?
8
votes
3answers
573 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 ...
10
votes
6answers
329 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
1answer
398 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
603 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
684 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 ...
18
votes
1answer
386 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 ...
4
votes
1answer
328 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 ...
8
votes
1answer
577 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
370 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
368 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
4answers
606 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
1answer
990 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 ...
6
votes
2answers
718 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, ...
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
499 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?
9
votes
3answers
677 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
399 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 ...
5
votes
2answers
412 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.
18
votes
4answers
4k 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 ...
15
votes
3answers
480 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
397 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 ...
10
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?
4
votes
3answers
321 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 ...
16
votes
5answers
713 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?
13
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,...
10
votes
2answers
402 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
2k 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 ...
9
votes
4answers
514 views

Rubbing the Havdalah wine

Is there any source for the practice of not only dipping one's fingers into the Havdalah wine that was used to extinguish the fire and rubbing the eyes with it, but also spreading it around onto other ...
9
votes
3answers
5k views

Rainbow as a bad omen

There is a popular idea that seeing a rainbow is a bad sign, as if the world is deserving of a deluge (c"v) and the only reason Hashem does not do so is because of His promise. Is there any source for ...
7
votes
1answer
586 views

Why are wedding invitation abbreviated b'rachos different for males and females?

Many wedding invitations written in Hebrew that I've seen have the abbreviations נ"י - after the groom's name - and תחי'‏ - after the bride's name. (Example) Sometimes they are slight alterations ...
5
votes
3answers
286 views

Origin of the Escalator analogy

What is the origin of the escalator analogy of always striving for growth? I'm referring to the analogy that, in life, like a person climbing a downward escalator, if one is not constantly striving ...
4
votes
1answer
235 views

Why do we wrap tefillin around the forearm and hand?

According to Masechet Menachot daf 37, we're supposed to place the box of the arm on the bicep. Why then do we also have a strap that wraps around the arm and hand (according to earliest sources)?
2
votes
2answers
633 views

What is Rambam's opinion on demons?

In Mishne Torah A.Z (11:16) he says that sorcery and mysticism in general does not exist, but he does not refer to demons explicitly. Does the Rambam speak about demons specifically anywhere else?
14
votes
3answers
5k views

Shaving on Friday when Lag Ba'omer falls out on a Sunday

This year (2011, 2017) Lag Ba'omer falls out on a Sunday. I've heard from a few people that the halacha is that you can shave (and take a haircut) on the Friday beforehand l'kavod Shabbos. Are there ...
8
votes
2answers
305 views

The Split Between Sefardim and Ashkenazim

How did this split happen historically and halachically before Shulchan Aruch, and why is not like having two Torahs? Where is the source for the split?