Rashi on Numbers 15:4/רש"י על במדבר ט״ו:ד׳

1והקריב המקריב THEN SHALL HE THAT OFFERETH [HIS OFFERING BRING A MEAL OFFERING etc.] — i.e. you shall offer a drink-offering and a meal-offering for each and every animal: the meal-offering to be entirely burnt, and the oil be mingled with it, and the wine to be put into the basins from which it was poured upon the altar (but see Tosafot on Sukkah 48a), as we have learnt in Treatise Sukkah 48a.