Midrash su Levitico 9:17

11) (Vayikra 9:17): "And he presented the meal-offering and he filled his hand from it": "filling" is stated here, and "filling" is stated elsewhere (Vayikra 5:2). Just as the "filling" there is "his full fistful," so the "filling" here is his full fistful. And just as with the "filling" there, if he took a fistful and there entered into it a pebble, a grain of salt, or a particle of frankincense, it is invalid; here, too, it is invalid.

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.