Midrash sobre Números 28:5

12) (Vayikra 9:17): "and he smoked it upon the altar aside from the burnt-offering of the morning": What does this come to teach us? If about the daily meal-offering, it is already written (Bamidbar 28:5): "and a tenth of an ephah of flour for the meal-offering." If to teach us about the meal-offering of the burnt-offering, it is already written (Bamidbar 28:16 above): "And he presented the burnt-offering and he offered it according to the ordinance." Why, then, is it written? To teach us that two meal-offerings are sacrificed one after the other.

(Bamidbar 28:5) "and a tenth of an ephah": one of ten in an ephah. "flour": of wheat. You say this, but perhaps it may be of barley, spelt, oats or shifon (a kind of spelt). It is, therefore, written (Shemot 29:2) "Of wheat flour shall you make them." Since "flours" are mentioned in the Torah unqualified, and in one instance it is specified that it must be wheat flour, so, all "flours" in the Torah are to be only of wheat. (Bamidbar 28:5) "for the meal-offering mixed with oil of crushing": to exclude (oil that is exuded from) what is cooked. This tells me only of (oil that is kasher for) meal-offerings. Whence do I derive (the same for) the menorah? It is written (in that regard) (Vayikra 24:2) "Command the children of Israel that they take to you clear oil of beaten olives" — to exclude what is cooked.