Numbers 6:14

6:14 and he must present his offering to the Lord: one male lamb in its first year without blemish for a burnt offering, one ewe lamb in its first year without blemish for a purification offering, one ram without blemish for a peace offering,

Numbers 29:2

29:2 You must offer a burnt offering as a sweet aroma to the Lord: one young bull, one ram, and seven lambs one year old without blemish.