Talmud su Levitico 15:16

It was stated: ⁶³Babli 30a. Rebbi Jehudah says, they instituted this immersion only as immersion of discipline, for sometimes when a person goes to wash he remembers an old emission of semen which he had and turns back⁶⁴In itself this immersion is useless. If a person actually is impure, he is forbidden to partake of sancta and to enter the sacred domain. Immersion in a miqweh will remove the impurity but the disability regarding sancta and the sacred domain is removed only by the following sundown (Lev. 22:7). Therefore immersion in the morning is only for pure persons; for R. Jehudah it is instituted so people should not inadvertently enter the sacred domain while still not qualified for it.. There, we have stated⁶⁵Mishnah Berakhot 3:6. The Mishnah is truncated; the full text explains the plural form of the verb: “The person with gonorrhea who had an emission of semen, as well as a menstruating woman who lost semen, and the woman who started menstruating while having intercourse, need immersion, but Rebbi Jehudah declares them not liable.”
An emission of semen pollutes, but it is a minor impurity which is removed by immersion in water and, for sancta, the following sundown. But gonorrhea and menstruation cause severe impurity for which immersion is possible only after seven days (Lev. 15:13,19). An immersion because of emission, before the time where immersion for the severe impurity is possible, is totally ineffective.
A different version of the following discussion is in Berakhot 3:6, Notes 260–264.: “the woman who started menstruating while having intercourse, needs immersion, but Rebbi Jehudah declares them not liable.” Why does Rebbi Jehudah disagree? Is it about immersion of discipline or because even if he immerses himself what would be its use? What is the difference? If he⁶⁶The male sufferer from gonorrhea, mentioned in the Mishnah. He had an emission before he started suffering from gonorrhea. He was obligated for an immersion before he became severely impure. had an emission. If you say that Rebbi Jehudah disagrees about immersion of discipline, it is a word of the Torah⁶⁷Lev. 15:16.. If you say, even if he immerses himself, what would be its use? It is useful that he immerse himself, as it was stated, Rebbi Jehudah says, they instituted this immersion only as immersion of discipline, for sometimes when a person goes to wash he remembers an old emission of semen which he had and turns back. This implies that Rebbi Jehudah did not disagree about immersion of discipline but because even if he immerses himself, what would be its use?