Questions connected to laws that were instituted by the Rabbis (not Biblical).

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9
votes
3answers
323 views

Amira Lakum: say you can't say?

One is not allowed to tell a non-Jew to do a melacha on shabbas, but one can hint and say "it is cold in here", hoping he will realize and shut the air conditioner. Is one allowed to explain to the ...
6
votes
1answer
78 views

Why is there no decree against bathing in Chamei Teverya?

Gemara Shabbos says that originally one was allowed to bathe on Shabbos in pre-heated bath-houses. However, (in short) due to the fact that the bath-house directors would violate Shabbos (by heating ...
1
vote
1answer
32 views

Nazir: shaving on the start of the vow

I read that a nazir would shave his hair just prior to taking the vow because of a decree of the sages. Is it true? What is the source for this information?
1
vote
1answer
160 views

How was Tevilas Ezra effective in limiting conjugal relations?

Many go to mikve (perform ritual immersion) every morning. One reason for this is voluntary continuation of a cancelled decree, Tevilas Ezra, meant to limit conjugal relations by requiring immersion ...
1
vote
1answer
101 views

Davar charif cut with meat knife — why not ossur?

The SA in YD Siman 97 Sif 1 (the makor is a braisa in Pesachim Daf 30) says that one should not knead together a dough with milk, lest someone come to eat it together with meat. If one did knead them ...
7
votes
0answers
62 views

Has anyone declared a time of oppression regarding the four Temple fasts?

The Sha'ar haTziyun (OC 550 sk 9) speculates if in his day (~1900 CE) there was enough oppression of the Jews to warrant declaring the fasts of 10 Tevet, 17 Tammuz and 3 Tishrei into full fledged ...
4
votes
0answers
36 views

Proof from Mishneh that Hilchos Chol HaMoed is M'd'rabbanan

If one looks into the Tur and Beis Yosef at the beginning of Hilchos Chol HaMoed in Simana 630 you will find a big maklokes rishonim if malacha on Chol HaMoed is an issur d'oraisa, d'rabbanan, or ...
3
votes
0answers
138 views

To what extent is homosexuality forbidden among non-Jews?

All homosexual behavior is forbidden among Jews, but some actions are clearly Torah prohibitions (e.g. mishkav zachar), while some might be Rabbinic in nature (e.g. lesbian relations). Are all of ...
3
votes
0answers
59 views

Can “Three D'Rabbanans be 'motzei' ”Two D'Rabbanans"

We know that when there is a case of someone that is obligated to perform a mitzvah m'drabbanan (and in fact there are 2 d'rabbanans together) they can't be "motzei" someone in the mitzvah who only ...
2
votes
0answers
72 views

Anti-libertarian-ism in Chazal

Most of the halachos of Choshen Mishpat have to do with one person's responsibilities viz-a-viz another person's rights. However, there is at least one halacha of which I am aware where Chazal told ...
2
votes
0answers
74 views

Who should observe Isru Chag?

I have been trying to understand Isru Chag. While there is a source in tehillim for the words and the gemara derives a notion of extra celebration, there seems to be little about the scope of the day. ...
1
vote
0answers
25 views

Halachic categorization of safek dioraisa…

Is the dictum of safek dioraisa l'chumrah (and its inverse safek d'rabanan l'kulah) a principle from the Torah, or a din d'rabanan? How does this change how we react in these sefeikah situations?
1
vote
0answers
46 views

Why make the Kohen burning the Para Aduma rabbinically impure?

The Gemara says that we make the Kohen burning the Para Aduma (the red heifer) impure and then dip him in the Mikva. The reason given is that there is an argument between the Rabbis and the Sadducees ...
1
vote
0answers
68 views

Are Kol Ishah and seeing a woman's exposed hair rabbinic prohibitions according to the Shulhan 'Aruch?

According to the Shulhan 'Aruch (Even Ha'Ezer 21:1), it is: ואסור לשמוע קול ערוה או לראות שערה. והמתכוין לאחד מאלו הדברים, מכין אותו מכת מרדות. ואלו הדברים אסורים גם בחייבי לאוין.‏ Forbidden ...