Leviticus 14:35 WEB

³³  Yahweh spoke to Moses and to Aaron, saying,

³⁴  'When you have come into the land of Canaan, which I give to you for a possession, and I put a spreading mildew in a house in the land of your possession,

³⁵  then he who owns the house shall come and tell the priest, saying, 'There seems to me to be some sort of plague in the house.'

³⁶  The priest shall command that they empty the house, before the priest goes in to examine the plague, that all that is in the house not be made unclean: and afterward the priest shall go in to inspect the house.

³⁷  He shall examine the plague; and, behold, if the plague is in the walls of the house with hollow streaks, greenish or reddish, and it appears to be deeper than the wall;