Levítico 14:8

8 "The person to be cleansed must wash their clothes, shave off all their hair and bathe with water; then they will be ceremonially clean. After this they may come into the camp, but they must stay outside their tent for seven days.

8 And he who is to be made clean will have his clothing washed and his hair cut and have a bath, and he will be clean. And after that he will come back to the tent-circle; but he is to keep outside his tent for seven days.