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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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21 votes
5 answers
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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?
Matthew Miller's user avatar
39 votes
7 answers
4k 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 ...
Chalutzhanal's user avatar
  • 2,292
56 votes
28 answers
5k 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 (...
msh210's user avatar
  • 73.4k
9 votes
6 answers
1k 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?
Curious Yid's user avatar
13 votes
5 answers
11k 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"?
far22's user avatar
  • 1,550
22 votes
4 answers
4k 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?
Reb Chaim HaQoton's user avatar
8 votes
5 answers
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 ...
Seth J's user avatar
  • 41.7k
5 votes
2 answers
582 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 ...
mevaqesh's user avatar
  • 35.8k
15 votes
1 answer
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 ...
Shraga's user avatar
  • 2,172
12 votes
2 answers
767 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?
Seth J's user avatar
  • 41.7k
10 votes
6 answers
686 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 ...
yosef's user avatar
  • 229
10 votes
1 answer
1k 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?
not-allowed to change my name's user avatar
5 votes
2 answers
2k 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 ...
sam's user avatar
  • 42.3k
22 votes
5 answers
8k 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 ...
Baruch's user avatar
  • 239
16 votes
4 answers
1k 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 ...
rachav's user avatar
  • 535
15 votes
2 answers
1k 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 ...
Monica Cellio's user avatar
14 votes
1 answer
330 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: ...
robev's user avatar
  • 19.9k
11 votes
6 answers
2k 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?
infoholic_anonymous's user avatar
9 votes
4 answers
596 views

How/why does kaparot work?

The ritual of kaparot [lit. atonement], which is usually done just prior to Yom Kippur (usually the day before), where one waves a chicken or an [unspecified] amount of money over one's head in a ...
user avatar
8 votes
1 answer
6k 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 ...
Michael's user avatar
  • 81
8 votes
3 answers
827 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 ...
Seth J's user avatar
  • 41.7k
8 votes
3 answers
1k 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. ...
הנער הזה's user avatar
4 votes
1 answer
508 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 ...
Yehoshua's user avatar
  • 16.1k
4 votes
1 answer
612 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?
Bochur613's user avatar
  • 4,697
3 votes
2 answers
746 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?
user avatar
3 votes
3 answers
394 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?
Chiddushei Torah's user avatar
1 vote
3 answers
502 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 ...
user avatar
30 votes
2 answers
1k 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 ...
Double AA's user avatar
  • 100k
19 votes
1 answer
519 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 ...
Double AA's user avatar
  • 100k
18 votes
5 answers
949 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?
Hacham Gabriel's user avatar
15 votes
1 answer
2k 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 ...
Hacham Gabriel's user avatar
12 votes
5 answers
799 views

Sources for free will of angels

I want to define free-will for this question as a moral right and wrong decision, not an arbitrary decision or a true/false decision. I am familiar with sources that say that angels do not have free ...
Y     e     z's user avatar
11 votes
3 answers
987 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 ...
ertert3terte's user avatar
  • 40.6k
8 votes
1 answer
771 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 ...
Double AA's user avatar
  • 100k
8 votes
2 answers
1k views

When can a wife use the money she owns or earns without her husband's permission?

Normally, the money that comes to a woman before and during her marriage, she uses to buy land which belongs to her, but the husband has the rights to eat (own) their fruits (dividends​), this is ...
hazoriz's user avatar
  • 7,556
7 votes
5 answers
1k 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.
TreeKing's user avatar
  • 1,523
7 votes
2 answers
755 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 ...
Kalman Krause's user avatar
6 votes
2 answers
1k 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, ...
Yehoshua's user avatar
  • 16.1k
6 votes
4 answers
3k views

Are Jews allowed to listen to music that is performed by non-Jew?

I am machmir on only listening to music that was performed by a Jew, but i don't really understand it. Does anyone know what is the source for this? Does Matisyahu perform with only Jews?
avrohom's user avatar
  • 1,000
6 votes
5 answers
599 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 ...
yoel's user avatar
  • 7,311
6 votes
4 answers
751 views

Is Gematria accepted by all?

It is widely accepted that each letter of the Hebrew alphabet has a Gematria (numerical value) attached to it. These numerical values often provide insight when comparing one Gematria to either ...
user6618's user avatar
  • 837
4 votes
3 answers
530 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 ...
Yehoshua's user avatar
  • 16.1k
26 votes
10 answers
3k views

High School Math in the Talmud

I'm currently tutoring someone in math that has an atitude of "what's the point of all this... why would I ever need this..." (which is typical of many high-schoolers). To try to pique his interest, I ...
yydl's user avatar
  • 38.6k
19 votes
5 answers
2k 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 ...
Adam Mosheh's user avatar
  • 6,039
16 votes
3 answers
10k views

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

Some years (e.g., 2011, 2017, 2024) 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....
BFree's user avatar
  • 869
16 votes
3 answers
629 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?
user avatar
15 votes
2 answers
2k 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,...
Seth J's user avatar
  • 41.7k
15 votes
3 answers
612 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 ...
Seth J's user avatar
  • 41.7k
14 votes
3 answers
3k 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 ...
Gavriel's user avatar
  • 9,808
12 votes
1 answer
503 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 ...
msh210's user avatar
  • 73.4k

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