Leviticus 13:25-27

Living Bible

²⁵ then the priest must examine the spot. If the hair in the bright spot turns white and the problem seems to be more than skin-deep, it is leprosy that has broken out from the burn, and the priest must pronounce him a leper.^{[a] 26} But if the priest sees that there are no white hairs in the bright spot and the brightness appears to be no deeper than the skin and is fading, the priest shall quarantine him for seven days ²⁷ and examine him again the seventh day. If the spot spreads in the skin, the priest must pronounce him a leper.