The Sharia of Moses in the TORA
Part 1 - The 248 Positive Commandments of the Tora
41 - THE SABBATH ADDITIONAL OFFERING
Numbers 28:9 -- “And of the Sabbath day two lambs in their first year, without blemish, and two-tenths of an ephah of fine flour as a grain offering, mixed with oil, with its drink offering.”
The order of the sacrifice is explained in the second chapter of Yoma and in Tamid.