Leviticus 13:52-54

Living Bible

⁵² and he must burn the clothing, fabric, linen or woolen covering, or leather article, for it is contagious and must be destroyed by fire.

⁵³ “But if when he examines it again on the seventh day the spot has not spread, ⁵⁴ the priest shall order the suspected article to be washed, then isolated for seven more days.