Leviticus 14:8-9 - The Seven Days Of Purification
8 And he that is to be declared clean shall wash his clothes and shave off all his hair, and bathe in water, and be clean, and, afterwards, shall he come into the camp, - and dwell outside his tent, seven days; 9 and it shall be on the seventh day, that he shall shave off all the hair of his head, and his beard, and his eyebrows, even all his hair, shall he shave off, - and shall wash his clothes and bathe his flesh in water so shall he be clean.