Numbers 7:87-88

87all the oxen for the burnt offering were twelve bulls, the rams twelve, the male lambs one year old twelve, together with their grain offering; and the male goats as a sin offering twelve;

88and all the oxen for the sacrifice of the peace offerings were twenty-four bulls, the rams sixty, the male goats sixty, the male lambs one year old sixty. This was the dedication for the altar [of burnt offering] after it was anointed.