Leviticus 14:42

⁴⁰then the priest shall give orders, and they shall take away the stones in which the plague is, and shall cast them out of the city into an unclean place.

⁴¹And they shall scrape the house within round about, and shall pour out the dust scraped off outside the city into an unclean place.

— Leviticus 14:42 —

⁴³And if the plague should return again, and break out in the house after they have taken away the stones and after the house is scraped, and after it has been plastered,

⁴⁴then the priest shall go in and see if the plague is spread in the house: it is a confirmed leprosy in the house, it is unclean.