Leviticus 1:9, 13

The animal’s inner organs and legs must be washed with water. Then the priest must burn all the animal’s parts on the altar. It is a whole burnt offering, an offering made by fire, and its smell is pleasing to the LORD.

The person must wash the animal’s inner organs and legs with water, and then the priest must burn all its parts on the altar. It is a whole burnt offering, an offering made by fire, and its smell is pleasing to the LORD.