Leviticus 4:3

For the Priest

4:3 “‘If the high priest sins so that the people are guilty, on account of the sin he has committed he must present a flawless young bull to the Lord for a sin offering.

Leviticus 8:14

Consecration Offerings

8:14 Then he brought near the sin offering bull and Aaron and his sons laid their hands on the head of the sin offering bull,

Numbers 29:7-11

The Day of Atonement

29:7 “‘On the tenth day of this seventh month you are to have a holy assembly. You must humble yourselves; you must not do any work on it. 29:8 But you must offer a burnt offering as a pleasing aroma to the Lord, one young bull, one ram, and seven lambs one year old, all of them without blemish. 29:9 Their grain offering must be of finely ground flour mixed with olive oil, three-tenths of an ephah for the bull, two-tenths for the ram, 29:10 and one-tenth for each of the seven lambs, 29:11 along with one male goat for a purification offering, in addition to the purification offering for atonement and the continual burnt offering with its grain offering and their drink offerings.