Leviticus 14:53-57

However, he shall let the live bird go free outside the city into the open field. So he shall make atonement for the house, and it will be clean.”

This is the law for any spot of leprosy—even for a scale,

and for the leprous garment or house,

and for a swelling, for a scab, and for a bright spot—

to teach when they are unclean and when they are clean. This is the law of leprosy.