Leviticus 13:26-28

Living Bible

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. ²⁸ But if the bright spot does not move or spread in the skin, and is fading, it is simply a scar from the burn, and the priest shall declare that he does not have leprosy.