Leviticus 14:5-7

Leeser(i) 5 And the priest shall command that one of the birds be killed in an earthen vessel over running water. 6 As for the living bird, he shall take it, and the cedar wood, and the string of scarlet yarn, and the hyssop, and he shall dip these and the living bird into the blood of the bird that was killed over the running water: 7 And he shall sprinkle upon him that is to be cleansed from the leprosy seven times; and when he hath cleansed him, he shall let the living bird fly forth into the open field.