Leviticus 13:58-59

Revised Standard Version

⁵⁸ But the garment, warp or woof, or anything of skin from which the disease departs when you have washed it, shall then be washed a second time, and be clean.”

⁵⁹ This is the law for a leprous disease in a garment of wool or linen, either in warp or woof, or in anything of skin, to decide whether it is clean or unclean.