Lev Leviticus, chapter Book of Leviticus, chapter 13
And he shall look on the plague on the seventh day: if the plague be spread in the garment, either in the warp, or in the woof, or in a skin, [or] in any work that is made of skin; the plague [is] a fretting (eating away; wearing away) leprosy; it [is] unclean.
He shall therefore burn that garment, whether warp or woof, in woolen or in linen, or anything of skin, wherein the plague is: for it [is] a fretting (eating away; wearing away) leprosy; it shall be burnt in the fire.