Leviticus 13:52-54

New International Version - UK

⁵² He must burn the fabric, the woven or knitted material of wool or linen, or any leather article that has been spoiled, because the defiling mould is persistent; the article must be burned.

⁵³ ‘But if, when the priest examines it, the mould has not spread in the fabric, the woven or knitted material, or the leather article, ⁵⁴ he shall order that the spoiled article be washed. Then he is to isolate it for another seven days.