Leviticus 15:10-20

10 Those who carry such things must wash their clothes and their bodies. They will be unclean until evening.
11 If a man who has a discharge touches anyone without first rinsing his hands, the person he touched must wash his clothes and his body. He will be unclean until evening.
12 When a man who has a discharge touches pottery, it must be broken, and any wooden bucket he touches must be rinsed.
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 On the eighth day he must take two mourning doves or two pigeons and come into the LORD's presence at the entrance to the tent of meeting. 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. So in the LORD's presence, the priest will make peace with the LORD 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.
19 "When a woman has her monthly period, she will be unclean for seven days. Those who touch her will be unclean until evening.
20 Everything she lies on or sits on during her period will be unclean.