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

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2
votes
2answers
55 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
2answers
350 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 ...
8
votes
1answer
104 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 ...
5
votes
1answer
50 views

Medicines v. Spices on Shabbos

Medicines are forbidden on shabbos for the non-critically ill because in the old days, they had to be ground with a pestle beforehand. Must not spices also be ground? How come spices are not also ...
2
votes
1answer
167 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 ...
1
vote
1answer
128 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 ...
4
votes
0answers
194 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
69 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
71 views

Is a triple shvus allowed?

Is there a concept of shvus dishvus with an added shvus making it a rabbinic prohibition 3 times removed. For example if it's yom tov sheini, and the action is rabbinic such as Nolad (turning on a ...
2
votes
0answers
87 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
60 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 ...