Leviticus 14:19

And the priest shall sacrifice the sin-offering, and the priest shall make atonement for the person under purification [to cleanse him] from his sin, and afterwards the priest shall slay the whole-burnt-offering.

And the priest shall offer the sin offering, and make an atonement for him that is to be cleansed from his uncleanness; and afterward he shall kill the burnt offering:

“The priest shall offer the sin offering, and make atonement for him who is to be cleansed because of his uncleanness. Afterward he shall kill the burnt offering;