Numbers 29:2, 13

On that day you must present a burnt offering as a pleasing aroma to the LORD. It will consist of one young bull, one ram, and seven one-year-old male lambs, all with no defects.

On the first day of the festival, you must present a burnt offering as a special gift, a pleasing aroma to the LORD. It will consist of thirteen young bulls, two rams, and fourteen one-year-old male lambs, all with no defects.