Leviticus 13:49-51

Amplified Bible

⁴⁹ if the mark is greenish or reddish in the garment or in the leather or in the warp or woof or in any article made of leather, it is an infestation of leprosy and shall be shown to the priest. ⁵⁰ The priest shall examine the mark and shall quarantine the article with the mark for seven days. ⁵¹ He shall examine the mark on the seventh day; if it has spread in the garment, whether in the warp or the woof, or in the leather, whatever the leather’s purpose, the mark is a malignant leprosy; it is unclean.