Numbers 6:19-20

19And the 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 who has just shaved the hair of his consecration. 20The priest shall then wave them as a wave offering before the LORD. This is a holy portion for the priest, in addition to the breast of the wave offering and the thigh that was presented. After that, the Nazirite may drink wine.