Leviticus 13:51-52

51Then he is to reexamine the plague on the seventh day. If the plague has spread in the garment, either in the weaving, the texture or the leather, whatever the use for the leather may be, the plague is a destructive mildew. It is unclean.

52He is to burn the garment or the weaving, or the texture, wool or linen, or anything of leather, in which the plague resides, for it is a destructive mildew. It is to be burned in the fire.