Numbers 28:3-6

3And you shall say to them, This is the food offering that you shall offer to the Lord: two male lambs a year old without blemish, day by day, as a regular offering.

4The one lamb you shall offer in the morning, and the other lamb you shall offer at twilight;

5also a tenth of an ephah of fine flour for a grain offering, mixed with a quarter of a hin of beaten oil.

6It is a regular burnt offering, which was ordained at Mount Sinai for a pleasing aroma, a food offering to the Lord.