Bible: Lev. 14:19-20
14:19 “The priest must then perform the sin offering 1 and make atonement for the one being cleansed from his impurity. After that he 2 is to slaughter the burnt offering, 14:20 and the priest is to offer 3 the burnt offering and the grain offering on the altar. So the priest is to make atonement for him and he will be clean.