Leviticus 14:8-9

8“The one to be cleansed must wash his clothes, shave off all his hair, and bathe himself in water. Then he shall be clean. After that he may come into the camp, but is to dwell outside his tent for seven days.

9Then on the seventh day, he is to shave all his hair from his head, his beard, and his eyebrows—he must shave off all his hair. He is to wash his clothes, and bathe his body in water. Then he will be clean.