Leviticus 6:20
20 w“This is the offering that Aaron and his sons shall offer to the Lord on the day when he is anointed: a xtenth of an ephah1 of fine flour as a regular grain offering, half of it in the morning and half in the evening.
Exodus 29:1
Consecration of the Priests
1 “Now this is what you shall do to them to consecrate them, that they may serve me as priests. bTake one bull of the herd and two rams without blemish,