Niddah

So this whole end of the Mishnah really is going like sheetas Rabbi Yehuda once you actually think about it.

And therefore shema'ina, we're gonna pasken like Rabbi Yehuda because we see that not only the Mishnah in Niddah, but even our Mishnah's going like sheetas Rabbi Yehuda.

Bar Yavanai, we have a new sheila according to Yavanai.

Ha'talush tzeror me'eilah temimah mahu? So here you have an eilah temimah, meaning it has no mum, and you talush some of the tzeror.

Is a Jew allowed to marry a non-Jew? Is a Jew allowed to take interest from a Jew? Is a Jew allowed to take interest from a non-Jew? He had specific questions to know whether the Jewish religion discriminates, uh, between the Jews and the non-Jews.

So the Maharshal think that they didn't come to learn kol haTorah kulah from Brachos to Niddah.

They came with pointed questions, specific questions.

So he says that the Rabbonim didn't realize it's gonna be a sakana.

Ramban, for instance, concludes that if all flesh is considered culpable for hashatat zera in the generation of the Flood, then even those not directly obligated in the mitzvah of pria verivya, like women, would be directly subject to the prohibition, whatever its precise contours.

Ramban writes in a comment in Niddah thirteen A, sheaf al pi she einan metzuvot al pria verivya, verashaim in haTorah livatel, isuru ba hashatah.

Ba hashatah kol basar ktiv.

For even though women are not commanded in pria verivya and the Torah permits desisting from it, it is a prohibition of hashatah of zera.

If that is the case, then perhaps specifically contraception entailing hashatat zera is at issue, regardless of whether pri urvu has been fulfilled, and other contraceptive methods would be permissible when they do not conflict with fulfilling pri urvu.

In the nineteenth century, Rav Yaakov Ettlinger suggests that hashatat zera falls under the broader prohibition of bal tashchit, not being wasteful.

He writes in Aruch LaNer Niddah thirteen A, yesh lomar be hashatat zera ikah gam kein mishum bal tashchit.

One can say that with hashatat zera there is also a concern on account of not wasting, bal tashchit.

So that's why they're flipped.

Some of the Mefarshim here on the page flip the Gersa from the Taman and the Hassam, What's interesting, it's pointed out that this is from a discussion in Masech HaNidah, which we don't have.

It must be some of the Yerushalmi in Nidah.

We're going to see, B'al Hashem, in a year or two, that we only have it on half the Masech HaNidah.

We don't have the Yerushalmi.

It must have been there because this is a quote on a Mishnah from over there, which we don't have.