15 Then thou shalt take one ram and Aaron and his sons shall lay their hands on the head of the ram;
Exodus 29:15 Cross References - Thomson
Exodus 29:3
3 and put them in one basket, and bring them in the basket, with the young bull and the two rams.
Exodus 29:10
10 for this purpose thou shalt bring the young bull to the doors of the tabernacle of the testimony and Aaron and his sons shall lay their bands on the head of the young bull before the Lord at the doors of the tabernacle of the testimony.
Exodus 29:19
19 Then thou shalt take the other ram, and Aaron and his sons shall lay their hands on the head of this ram;
Leviticus 1:4-9
4 and he shall lay his hand on the head of the homage offering to be accepted for him; to make atonement for him.
5 And they shall kill the young bull before the Lord; and the sons of Aaron the priests shall carry the blood and pour it out round about on the altar which is at the doors of the tabernacle of the testimony;
6 and having flayed the whole burnt offering they shall cut it in quarters;
7 and the sons of Aaron the priests shall put the fire on the altar and pile wood on the fire;
8 and the sons of Aaron the priests shall lay the quarters with the head and the suet on the wood which is on the fire on the altar;
9 and they shall wash the entrails and the feet with water, and the priests shall lay them all on the altar. It is an homage gift, a sacrifice, a smell of fragrance for the Lord.
Leviticus 8:18-21
18 Then Moses brought forward the ram which was for a whole burnt offering, and Aaron and his sons laid their hands on the head of the ram;
19 and Moses slew the ram, and poured the blood against the altar round about.
20 And having divided the ram into quarters, Moses carried up the head, and the pieces, and the suet.
21 Then having washed the belly and the feet with water, Moses carried up the whole ram upon the altar. It is a whole burnt offering for a smell of fragrance; an offering of homage to the Lord, as the Lord commanded Moses.