Leviticus 7:33-35

Amplified Bible

³³ The son of Aaron who offers the blood of the peace offerings and the fat shall have the right thigh as his portion. ³⁴ For I have taken the breast of the wave offering and the thigh of the heave offering from the Israelites, from the sacrifices of their peace offerings, and I have given them to Aaron the priest and to his sons as their perpetual portion from the Israelites.

³⁵ ‘This is the consecrated portion from the offerings by fire to the Lord that was designated for Aaron and his sons on the day he presented them to serve as priests to the Lord.