Leviticus 13:57-59

57Then if it still appears again in the garment or the warp or the woof, or in any article of leather, it is an outbreak. Whatever has the infection in it you must burn up in the fire.

58But the garment or the warp or the woof or any article of leather which you wash and infection disappears from it is to be washed a second time and it will be clean.”

59This is the law of the diseased infection in the garment of wool or linen, or the warp or woof, or any article of leather, for pronouncing it clean or unclean.