Imamat 13:51

13:51 He must then examine the infection on the seventh day. If the infection has spread in the garment, or in the warp, or in the woof, or in the leather – whatever the article into which the leather was made ¹  – the infection is a malignant disease. It is unclean.

[13:51]  ¹ tn Heb “to all which the leather was made into a handiwork.”