Leviticus 7:35-38 NIV

35 This is the portion of the offerings made to the LORD by fire that were allotted to Aaron and his sons on the day they were presented to serve the LORD as priests.
36 On the day they were anointed,1 the LORD commanded that the Israelites give this to them as their regular share for the generations to come.

References for Leviticus 7:36

37 These, then, are the regulations for the burnt offering,2 the grain offering,3 the sin offering, the guilt offering, the ordination offering4 and the fellowship offering,

References for Leviticus 7:37

      38 which the LORD gave Moses5 on Mount Sinai6 on the day he commanded the Israelites to bring their offerings to the LORD,7 in the Desert of Sinai.

      References for Leviticus 7:38