Leviticus 4
8 Ref And he is to take away all the fat of the ox of the sin-offering; the fat covering the inside parts and all the fat of the inside parts,
9 Ref And the two kidneys, with the fat on them, which is by the top part of the legs, and the fat joining the liver and the kidneys, he is to take away,
10 As it is taken from the ox of the peace-offering; and it is to be burned by the priest on the altar of burned offerings.