Leviticus 13:53-55

53But if the priest examines it and the infection has not spread in the garment or in the warp or in the woof or in any article of leather,

54the priest is to command that they wash whatever has the infection and quarantine it for another seven days.

55The priest must then examine it after the infection has been washed out, and if the infection has not changed its appearance even though the infection has not spread, it is unclean. You must burn it up in the fire. It is a fungus, whether on the back side or front side of the article.