Implied question: [Our Mishnah forbids] Bi'ah. Look - bathing is forbidden. All the more so Bi'ah is forbidden (one who has Bi'ah must immerse before praying. SHIREI KORBAN asks that the Tana must forbid after one prayed Minchah; perhaps he always forbids Bi'ah during the day. MASA D'YERUSHALAYIM (Ta'anis 1:6) says that one must pray Ne'ilah at the end of the day.)

Answer: [Our Mishnah needs to teach about] a place where they do not immerse, or [it was taught] before Ezra enacted that a Ba'al Keri must immerse.

(R. Yakov bar Acha citing R. Yisa citing R. Yehoshua ben Levi): Keri [that obligates Tevilah] is only from Bi'ah.

(Rav Huna): It is even if he saw himself having Bi'ah in a dream (and had an emission).

They wanted to say that this is only [if he saw himself having Bi'ah] with a woman. (Rav Huna explains R. Yehoshua ben Levi. He does not argue with him.)

Rebuttal (R. Yonah and R. Yosa): It is even if [he saw Keri] due to something else.

Question: Our Mishnah taught that on Yom Kipur is forbidden eating, drinking, bathing, Sichah (anointing), wearing shoes and Bi'ah, and a Beraisa taught about this that a Ba'al Keri immerses normally in private on Yom Kipur. Doesn't this argue with R. Yehoshua ben Levi? R. Yehoshua ben Levi said that Tevilah is needed only for one who had Bi'ah!

Answer: The case is, he had Bi'ah before Yom Kipur, and forgot and did not immerse.

Objection: It was taught that a case occurred with R. Yosi bar Chalifta, that they saw him immerse covertly on Yom Kipur. Can you say about that Kadosh body that he forgot?!

A king [may wash his face] due to "Melech b'Yafyo Sechezenah Einecha.'' A Kalah may, due to enmity (lest her husband be repulsed with her). And one who gave birth may wear shoes; R. Eliezer says so.

We wanted to say that [the argument of R. Eliezer and Chachamim is only] about the Seifa (a Yoledes). It was found that [they argue about] all of them.