Leviticus 14:12-14; Leviticus 14:19

12 “Then the priest is to take one of the male lambs and offer it as a guilt offering, along with the log of oil; he shall wave them before the LORD as a wave offering.

13 He is to slaughter the lamb in the sanctuary area where the sin offering and the burnt offering are slaughtered. Like the sin offering, the guilt offering belongs to the priest; it is most holy.

14 The priest is to take some of the blood of the guilt offering and put it on the lobe of the right ear of the one to be cleansed, on the thumb of their right hand and on the big toe of their right foot.

19 “Then the priest is to sacrifice the sin offering and make atonement for the one to be cleansed from their uncleanness. After that, the priest shall slaughter the burnt offering