Leviticus 7:14

7:14 He must present one of each kind of grain offering as a contribution offering to the Lord; it belongs to the priest who splashes the blood of the peace offering.

Leviticus 7:34

7:34 for the breast of the wave offering and the thigh of the contribution offering I have taken from the Israelites out of their peace offering sacrifices and have given them to Aaron the priest and to his sons from the people of Israel as a perpetual allotted portion.’”