Leviticus 14:55

53but he shall let the living bird go out of the city into the open field. So shall he make atonement for the house; and it shall be clean.”

54This is the law for any plague of leprosy, and for an itch,

55and for the destructive mildew of a garment, and for a house,

56and for a swelling, and for a scab, and for a bright spot;

57to teach when it is unclean, and when it is clean. This is the law of leprosy.