Leviticus 13:3

13:3 The priest must then examine the infection on the skin of the body, and if the hair in the infection has turned white and the infection appears to be deeper than the skin of the body, then it is a diseased infection, so when the priest examines it he must pronounce the person unclean.

Leviticus 13:20

13:20 The priest will then examine it, and if it appears to be deeper than the skin and its hair has turned white, then the priest is to pronounce the person unclean. It is a diseased infection that has broken out in the boil.

Leviticus 13:25

13:25 the priest must examine it, and if the hair has turned white in the bright spot and it appears to be deeper than the skin, it is a disease that has broken out in the burn. The priest is to pronounce the person unclean. It is a diseased infection.