Leviticus 15:16–18
16 “If a man has an emission of semen, he shall bathe his whole body in water and be unclean until the evening. 17 And every garment and every skin on which the semen comes shall be washed with water and be unclean until the evening. 18 If a man lies with a woman and has an emission of semen, both of them shall bathe themselves in water and be unclean until the evening.
Leviticus 15:32
32 This is the law for him who has a discharge and for him who has an emission of semen, becoming unclean thereby;
Leviticus 22:4
4 None of the offspring of Aaron who has a rleprous disease or a sdischarge may eat of the holy things tuntil he is clean. Whoever touches anything that is unclean uthrough contact with the dead or a man who has had an emission of semen,