Numbers 15:5

and for a libation you shall pour the fourth of an hin of wine upon the whole burnt offering, or upon the sacrifice; for every lamb you shall do this, as an offering of homage, a smell of fragrance for the Lord.

And for a drink-offering ye shall offer the fourth part of a hin on the whole-burnt-offering, or on the meat-offering: for every lamb thou shalt offer so much, as a sacrifice, a smell of sweet savour to the Lord.