Midrash sobre Levítico 1:3

1) (Vayikra 1:3): ("If his offering is) a burnt-offering": Why need this be written? (i.e., It is clear from the context that we are speaking of a burnt-offering.) I might think that all of these p'sulin (invalidating factors: muktza, ne'evad, rovea, etc.) obtain only with a gift burnt-offering. How would I know that they also obtain with a prescribed burnt-offering? (Therefore, "a burnt-offering" is needed.) — But does it not follow (even without the inclusion clause)? It is written that a gift burnt-offering is brought, and it is written that a prescribed burnt-offering is brought. Just as all of these p'sulin obtain with a gift burnt-offering, so do they obtain with a prescribed burnt-offering!

1) (Vayikra 1:3-4): "… before the L–rd. And he shall place (his hand on the head of the olah"): There is no semichah on a bamah (a temporary altar, it not being considered " before the L–rd"). (Vayikra 1:11): ("And he shall slaughter it on the side of the altar) northward (tzafonah), before the L–rd": There is no tzafon (requirement) on a bamah. Now which measure is greater? That of tzafon or that of semichah? The measure of tzafon is greater. For tzafon obtains both with individual and with communal offerings, whereas semichah obtains only with individual offerings. If I exclude them (bamoth) from tzafon, the greater measure, would I not exclude them from semichah, the lesser measure? (Why, then, is the exclusion verse for bamoth re semichah necessary) Perceived thus, tzafon is the greater measure, and semichah, the lesser. But perceived otherwise, semichah is the greater measure and tzafon the lesser. For semichah obtains with both higher and lower-order offerings, whereas tzafon obtains only with higher-order offerings. If I exclude them (bamoth) from tzafon, the lesser measure, I would not exclude them from semichah, the greater measure. So that because there obtains with tzafon what does not obtain with semichah, and with semichah, what does not obtain with tzafon; it is, therefore, written: "before the L–rd, vesamach" — there is no semichah on a bamah. "tzafonah before the L–rd" — there is no tzafon on a bamah. "before the L–rd vesamach": Even if he performed semichah outside (the azarah), he must return and perform it inside ("before the L–rd").

2) No, in the case of a gift bird-offering he cannot bring a [bird] burnt-offering as a) substitute, whereas in the case of a prescribed burnt-offering he can (sometimes) bring a bird burnt-offering as) a substitute. And since he can bring a substitute (we would say, without the inclusion verse that) all of these p'sulin should not obtain; it is, therefore, written "a burnt-offering" — Whether a gift burnt-offering or a prescribed burnt-offering, all of the p'sulin obtain with them.