Leviticus 13:48-50

New International Version - UK

⁴⁸ any woven or knitted material of linen or wool, any leather or anything made of leather – ⁴⁹ if the affected area in the fabric, the leather, the woven or knitted material, or any leather article, is greenish or reddish, it is a defiling mould and must be shown to the priest. ⁵⁰ The priest is to examine the affected area and isolate the article for seven days.