Study Niddah folio 67B with parallel Hebrew-English text, traditional commentary, and modern study tools. Free access to Babylonian Talmud online.
3 hairs tied together in a knot do not interpose, as 3 hairs cannot be tied so tightly that water cannot penetrate them. With regard to two hairs tied together in a knot, I do not know the halakha. And R' Yoḥanan says: We have a tradition that only one hair interposes, but two or more do not preven
§ R' Yitzḥak says: By Torah law, if there is an interposition between a person and the water, and it covers the majority of his body, and he is particular and wants the interposing substance removed, it interposes and invalidates an immersion in a mikveh. But if it covers the majority of his body b
The Talmud raises a difficulty: But let them also issue a decree prohibiting substances covering the minority of his body with regard to which he is not particular, due to substances covering the minority of his body about which he is particular. The Talmud answers: The rabbis did not issue such a
§ The Talmud returns to discuss the issue of the correct time for immersion. Rav says: A menstruating woman who wishes to immerse to complete her purification process at her time, i.e., at the end of 7 days, may immerse only at night, i.e., on the night after the 7th day, the night of the 8th day.
And even Rav retracted his opinion and ruled that a woman who is immersing after menstruation may never do so during the day. As R' Ḥiyya bar Ashi said that Rav said: A menstruating woman who wishes to immerse to complete her purification process, whether at her time or whether not at her time, may