Leviticus 13:51

He shall then look at the mark on the seventh day; if the mark has spread in the garment, whether in the warp or in the woof, or in the leather, whatever the purpose for which the leather is used, the mark is a leprous malignancy, it is unclean.

Leviticus 14:44

then the priest shall come in and make an inspection. If he sees that the mark has indeed spread in the house, it is a malignant mark in the house; it is unclean.

Treasury of Scripture Knowledge

Summary

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.

Fretting leprosy

General references

Bible References

Fretting leprosy

Leviticus 14:44
then the priest shall come in and make an inspection. If he sees that the mark has indeed spread in the house, it is a malignant mark in the house; it is unclean.

General references

Leviticus 14:39
The priest shall return on the seventh day and make an inspection. If the mark has indeed spread in the walls of the house,