Numbers 6:19-20

19The priest is to take the boiled shoulder from the ram, one unleavened cake from the basket, and one unleavened wafer, and put them into the hands of the Nazirite after he has shaved his consecrated head.

20The priest is to present them as a presentation offering before the Lord. It is a holy portion for the priest, in addition to the breast of the presentation offering and the thigh of the contribution. After that, the Nazirite may drink wine.