Leviticus 13:49-51

Revised Standard Version

⁴⁹ if the disease shows greenish or reddish in the garment, whether in warp or woof or in skin or in anything made of skin, it is a leprous disease and shall be shown to the priest. ⁵⁰ And the priest shall examine the disease, and shut up that which has the disease for seven days; ⁵¹ then he shall examine the disease on the seventh day. If the disease has spread in the garment, in warp or woof, or in the skin, whatever be the use of the skin, the disease is a malignant leprosy; it is unclean.