Leviticus 15:13-18 - Purity Regulations For Male Bodily Discharges
13 When a man's discharge stops, he must wait seven days to be cleansed. He must wash his clothes and his body in fresh water. Then he will be clean. 14 He must take two mourning doves or two pigeons and come into Jehovah's presence at the entrance to the Tent of Meeting on the eighth day. He will give these birds to the priest. 15 The priest will sacrifice one as an offering for sin and the other as a burnt offering. Thus in Jehovah's presence, the priest will pay compensation for the wrongdoing and make peace with Jehovah for the man who had a discharge.
16 If a man has an emission of semen, he must bathe his whole body. He will be unclean until evening. 17 Any clothes or any leather with semen on it must be washed. It will be unclean until evening. 18 When a man has sexual intercourse with a woman and has an emission of semen, they must wash themselves. They will be unclean until evening.