Leviticus 14:8-9

8The one to be cleansed shall wash his clothes, shave off all his hair, and bathe in water; and he shall be clean. After that he may come into the camp, but he shall stay outside of his tent for seven days.

9On the seventh day he shall shave off all his hair: he shall shave his head and his beard and his eyebrows, even all his hair [on his body]. Then he shall wash his clothes and bathe his body in water, and be clean.