Leviticus 14:32-36

This is the law for one who had a leprous sore, who cannot afford the usual cleansing.” And the LORD spoke to Moses and Aaron, saying: “When you have come into the land of Canaan, which I give you as a possession, and I put the leprous plague in a house in the land of your possession, and he who owns the house comes and tells the priest, saying, ‘It seems to me that there is some plague in the house,’ then the priest shall command that they empty the house, before the priest goes into it to examine the plague, that all that is in the house may not be made unclean; and afterward the priest shall go in to examine the house.