Leviticus 14:24

And the priest shall take the lamb of the trespass offering, and the log of oil, and the priest shall wave them for a wave offering before the Lord:

Cross-reference

Leviticus 14:10-13 describes the trespass offering lamb and oil — verse 24 then instructs the priest to wave them, a sequential step in the same rite.

Numbers 6:12 requires a lamb for a trespass offering when a Nazirite becomes defiled — like here, a trespass offering with a lamb.