Leviticus 13:45-46

“As for the leper who has the infection, his clothes shall be torn, and the hair of his head shall be uncovered (disheveled), and he shall cover his mustache and call out, ‘Unclean! Unclean!’ He shall remain [ceremonially] unclean as long as the disease is on him; he is unclean. He shall live alone; he shall live outside the camp.