Numbers 28:26-31

“On the day of the firstfruits, when you offer a grain offering of new grain to the LORD at your Feast of Weeks, you shall have a holy convocation. You shall not do any ordinary work, but offer a burnt offering, with a pleasing aroma to the LORD: two bulls from the herd, one ram, seven male lambs a year old; also their grain offering of fine flour mixed with oil, three tenths of an ephah for each bull, two tenths for one ram, a tenth for each of the seven lambs; with one male goat, to make atonement for you. Besides the regular burnt offering and its grain offering, you shall offer them and their drink offering. See that they are without blemish.