Leviticus 13:6

13:6 The priest must then examine it again on the seventh day, and if the infection has faded and has not spread on the skin, then the priest is to pronounce the person clean. It is a scab, so he must wash his clothes and be clean.

Leviticus 13:34

13:34 The priest must then examine the scall on the seventh day, and if the scall has not spread on the skin and it does not appear to be deeper than the skin, then the priest is to pronounce him clean. So he is to wash his clothes and be clean.

Leviticus 20:25

20:25 Therefore you must distinguish between the clean animal and the unclean, and between the unclean bird and the clean, and you must not make yourselves detestable by means of an animal or bird or anything that creeps on the ground – creatures I have distinguished for you as unclean.