"You shall also have the bull brought before the tabernacle of meeting, and Aaron and his sons shall put their hands on the head of the bull.
Exodus 29:10
Surrounding context
29:9 And you shall gird them with sashes, Aaron and his sons, and put the hats on them. The priesthood shall be theirs for a perpetual statute. So you shall consecrate Aaron and his sons.
29:10 "You shall also have the bull brought before the tabernacle of meeting, and Aaron and his sons shall put their hands on the head of the bull.
29:11 Then you shall kill the bull before the LORD, by the door of the tabernacle of meeting.