‘If the priest examines it, and the contamination has faded after it has been washed, he is to cut the contaminated section out of the fabric, the leather, or the warp or weft.
After it has been washed, the priest is to re-examine the contamination. If the appearance of the contaminated article has not changed, it is unclean. Even though the contamination has not spread, you must burn the fabric. It is a fungus on the front or back of the fabric.