Midrash su Esodo 29:26

2) Now where is it excluded (from such application, that we need a verse to include it)? — Because it is written (in respect to the guilt-offering of a leper (Vayikra 14:13): "For, as the sin-offering, so is the guilt-offering to the Cohein," (I would think that just as the blood of a sin-offering is applied above (with the Cohein's finger on the corners of the altar), so, the blood of this (guilt-offering); it is, therefore, written, (to negate this,) "the law of the guilt-offering" (including the guilt-offering of the leper). (Vayikra 7:2) ("In the place where they slaughtered the burnt-offering shall they slaughter the guilt-offering; and its blood shall he sprinkle on the altar roundabout.") "and its blood shall he sprinkle": All guilt-offerings, including that of a leper, are herein subsumed, for the application of their blood below (the red line). Whence do we derive that if the blood of a guilt-offering became intermixed with that of peace-offerings (both being applied below the red line) it is (still) to be sprinkled (for whichever he desires)? From "holy of holies … and its blood shall he sprinkle." I might think that the same applied if they became interchanged when alive; it is, therefore, (to negate this,) written "it (is holy of holies," i.e., it must be specially designated by type). What, then, can he do? He lets them graze until they sustain a blemish, after which he sells them and offers a higher priced animal as one type, (guilt-offering or peace-offering, as he chooses), and a higher priced animal as the other type, making up the difference (between higher priced and lower priced) from his pocket, (for either guilt-offering or peace-offering could have been higher priced originally). R. Shimon says: If a guilt-offering became interchanged with a peace-offering, both are to be slaughtered in the north (of the altar, as per the stringency of a guilt-offering); one, as a guilt-offering; the other, as a peace-offering; and each is to be eaten according to the more stringent of them (the guilt-offering, which is eaten for a day and a night). They said to him: But do not peace-offerings require waving (viz. Shemoth 29:26), and guilt-offerings not require waving? He said to them: What of it? Let him wave the guilt-offering! They answered: Offerings, (in this case, peace-offerings,) are not brought to "the house of unfitness" (i.e., By doing this you are opening the door to the invalidation of peace-offerings).