Leviticus 15:17-19

Complete Jewish Bible

¹⁷ Any clothing or leather on which there is any semen is to be washed with water; it will be unclean until evening. ¹⁸ If a man goes to bed with a woman and has sexual relations, both are to bathe themselves in water; they will be unclean until evening.

¹⁹ “‘If a woman has a discharge, and the discharge from her body is blood, she will be in her state of niddah for seven days. Whoever touches her will be unclean until evening.