Exodus 29:11
And thou shalt kill the bullock before the Lord, by the door of the tabernacle of the congregation.
Cross-reference
Exodus 29:4 is the preceding step — washing Aaron and his sons at the tabernacle door before this sacrifice.
Exodus 29:16 continues the ceremony with killing the ram — a different sacrifice in the same consecration sequence.
Leviticus 1:5 also commands killing the bull before the Lord at the tent — this verse follows the same procedure.
Leviticus 8:15 records the actual execution of this command — Moses kills the bull at the tabernacle door as instructed here.
Leviticus 4:4 gives the same procedure for a priest's sin offering — bring to door, lay hand, kill before the Lord.
Leviticus 1:3 requires burnt offerings also be brought to the tabernacle door — the same location specified here.
Leviticus 9:8 shows Aaron later killing his own sin offering calf at the altar — a similar but distinct action.
Ezekiel 43:19 instructs a young bull as sin offering for priests — a later echo of this consecration pattern.