Leviticus 3:1-3

“ ‘If your offering is a fellowship offering, and you offer an animal from the herd, whether male or female, you are to present before the LORD an animal without defect. You are to lay your hand on the head of your offering and slaughter it at the entrance to the tent of meeting. Then Aaron’s sons the priests shall splash the blood against the sides of the altar. From the fellowship offering you are to bring a food offering to the LORD: the internal organs and all the fat that is connected to them