16. When a man has an emission of semen, he shall bathe his whole body in water and be unclean until evening.
17. Any piece of cloth or leather with semen on it shall be washed with water and be unclean until evening.
18. If a man has sexual relations with a woman, they shall both bathe in water and be unclean until evening.
19. When a woman has a flow of blood from her body, she shall be in a state of menstrual uncleanness for seven days. Anyone who touches her shall be unclean until evening.
20. Anything on which she lies or sits during her menstrual period shall be unclean.
21. Anyone who touches her bed shall wash his garments, bathe in water, and be unclean until evening.
22. Whoever touches any article on which she was sitting shall wash his garments, bathe in water, and be unclean until evening.