Leviticus 13:48

46All the days in which the plague is in him he shall be unclean. He is unclean. He shall dwell alone. His dwelling shall be outside of the camp.

47“The garment also that the plague of leprosy is in, whether it is a woolen garment, or a linen garment;

48whether it is in warp or woof; of linen or of wool; whether in leather, or in anything made of leather;

49if the plague is greenish or reddish in the garment, or in the leather, or in the warp, or in the woof, or in anything made of leather; it is the plague of leprosy, and shall be shown to the priest.

50The priest shall examine the plague, and isolate the plague seven days.