Leviticus 14:5-7; Leviticus 14:51-52
Then the priest shall order that one of the birds be killed over fresh water in a clay pot.
He is then to take the live bird and dip it, together with the cedar wood, the scarlet yarn and the hyssop, into the blood of the bird that was killed over the fresh water.
Seven times he shall sprinkle the one to be cleansed of the infectious disease and pronounce him clean. Then he is to release the live bird in the open fields.
Then he is to take the cedar wood, the hyssop, the scarlet yarn and the live bird, dip them into the blood of the dead bird and the fresh water, and sprinkle the house seven times.
He shall purify the house with the bird's blood, the fresh water, the live bird, the cedar wood, the hyssop and the scarlet yarn.