Leviticus 14:41

And the priest shall come again the seventh day, and shall look: and, behold, [if] the plague be spread in the walls of the house;

Then the priest shall command that they take away the stones in which the plague [is], and they shall cast them into an unclean place without the city:

And they shall take other stones, and put [them] in the place of those stones; and he shall take other morter, and shall plaister the house.

And if the plague come again, and break out in the house, after that he hath taken away the stones, and after he hath scraped the house, and after it is plaistered;