These are the men who had a seminal emission who require immersion: If he noticed that his urine issued in drops or was murky: At the beginning he is clean; In the middle and at the end, he is unclean; From the beginning to the end, he is clean. If it was white and viscous, he is unclean. Rabbi Yose says: what is white counts like what is murky.

If he emitted thick drops from his member, he is unclean, the words of Rabbi Elazar Hisma. If one had sexual dreams in the night and arose and found his flesh heated, he is unclean. If a woman discharged semen on the third day, she is clean, the words of Rabbi Elazar ben Azariah. Rabbi Ishmael says: sometimes there are four time periods, and sometimes five, and sometimes six. Rabbi Akiva says: there are always five.

If a non-Jewish woman discharged semen from an Israelite, it is unclean. If an Israelite woman discharged semen from a non-Jewish man, it is clean. If a woman had intercourse and then went down and immersed herself but did not sweep out the house, it is as though she had not immersed herself. If a man who had a seminal emission immersed himself but did not first pass urine, he again becomes unclean when he passes urine. Rabbi Yose says: if he was sick or old he is unclean, but if he was young and healthy he remains clean.

If a menstruant placed coins in her mouth and went down and immersed herself, she becomes clean from her [former] uncleanness, but she becomes unclean on account of her spittle. If she put her hair in her mouth or closed her hand or pressed her lips tightly, it is as though she had not immersed herself. If a person held on to another man or to vessels and immersed them, they remain unclean; but if he had washed his hand before in the water, they become clean. Rabbi Shimon says: he should hold them loosely that water may enter into them. The hidden or wrinkled parts of the body do not need that water should enter into them.