利未記 13:51

第七天，他要察看那災病，災病或在衣服上，經上、緯上，皮子上，若發散，這皮子無論當作何用，這災病是蠶食的大痲瘋，都是不潔淨了。

And he shall look on the plague on the seventh day: if the plague be spread in the garment, either in the warp, or in the woof, or in a skin, or in any work that is made of skin; the plague is a fretting leprosy; it is unclean.