Leviticus 13:47-52

47“Now suppose mildew contaminates some woolen or linen clothing,

48woolen or linen fabric, the hide of an animal, or anything made of leather.

49If the contaminated area in the clothing, the animal hide, the fabric, or the leather article has turned greenish or reddish, it is contaminated with mildew and must be shown to the priest.

50After examining the affected spot, the priest will put the article in quarantine for seven days.

51On the seventh day the priest must inspect it again. If the contaminated area has spread, the clothing or fabric or leather is clearly contaminated by a serious mildew and is ceremonially unclean.

52The priest must burn the item—the clothing, the woolen or linen fabric, or piece of leather—for it has been contaminated by a serious mildew. It must be completely destroyed by fire.