Leviticus 14:2-7

²This shall be the law for the leper on the day of his purification: He shall be brought to the priest;

³And the priest shall go forth out of the camp, and the priest shall look, and, behold, if the leper be healed of his leprosy,

⁴Then the priest shall direct that there be brought for him who is to be cleansed two birds, alive, clean, and wood of cedar and scarlet (wood) and hyssop.

⁵And the priest shall direct that one of the birds be killed in an earthen vessel with spring water.

⁶And he shall take the living bird with the cedar wood, and the scarlet, and the hyssop, and dip them and the living bird in the blood of the bird that had been killed over the spring water.

⁷And he shall sprinkle it on him who is to be cleansed form leprosy seven times, and he shall be clean: and the living bird he shall send forth upon the face of the field.