Leviticus 14:41 in the World English Bible
He shall cause the inside of the house to be scraped all over. They shall pour out the mortar that they scraped off outside of the city into an unclean place.
Context
40 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:
41 And he shall cause the house to be scraped within round about, and they shall pour out the dust that they scrape off without the city into an unclean place:
42 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.