Leviticus 7:29-32

29“Speak to the sons of Israel, saying, ‘He who offers 1the sacrifice of his peace offerings to the Lord shall bring his offering to the Lord from the sacrifice of his peace offerings.

30His own hands are to bring offerings by fire to the Lord. He shall bring the fat with the breast, that the 2breast may be 3presented as a wave offering before the Lord.

31The priest shall offer up the fat in smoke on the altar, but 4the breast shall belong to Aaron and his sons.

32You shall give 5the right thigh to the priest as a 6contribution from the sacrifices of your peace offerings.