The Burnt offering: The Day of Atonement
Source: TTT
Leviticus 16:3, 5
This is how Aaron is to enter the Holy Place: with a young bull for a sin offering and a ram for a burnt offering. / And he shall take from the congregation of Israel two male goats for a sin offering and one ram for a burnt offering.
Numbers 29:8
Present as a pleasing aroma to the LORD a burnt offering of one young bull, one ram, and seven male lambs a year old, all unblemished,