Leviticus 14:50-52

New Revised Standard Version, Anglicised Catholic Edition

⁵⁰ and shall slaughter one of the birds over fresh water in an earthen vessel, ⁵¹ and shall take the cedar wood and the hyssop and the crimson yarn, along with the living bird, and dip them in the blood of the slaughtered bird and the fresh water, and sprinkle the house seven times. ⁵² Thus he shall cleanse the house with the blood of the bird, and with the fresh water, and with the living bird, and with the cedar wood and hyssop and crimson yarn;