51 And he will look on the disease on the seventh day. If the disease has spread in the garment, either in the warp, or in the woof, or in the skin, whatever service skin is used for, the disease is a prickling leprosy, it is unclean.
Leviticus 13:51 Cross References - MLV
Leviticus 14:44
44 then the priest will come in and look. And behold, if the disease has spread in the house, it is a prickling leprosy in the house; it is unclean.