Leviticus 14:8-9

8The one who is to be cleansed must wash his clothes, shave off all his hair, and bathe with water; he is clean. Afterward he may enter the camp, but he must remain outside his tent for seven days.

9He is to shave off all his hair again on the seventh day: his head, his beard, his eyebrows, and the rest of his hair. He is to wash his clothes and bathe himself with water; he is clean.