Leviticus 13:44-46

44he is a leprous man. He is unclean. The priest shall surely pronounce him unclean; his sore is on his head.

45“Now the leper on whom the sore is, his clothes shall be torn and his head bare; and he shall cover his mustache, and cry, ‘Unclean! Unclean!’

46He shall be unclean. All the days he has the sore he shall be unclean. He is unclean, and he shall dwell alone; his dwelling shall be outside the camp.