Zevachim 12:3 - 12:4

עורות קדשים קלים לבעלים – as it is written (Leviticus 7:8): “shall keep the skin/עור העולה of the burnt offering [that is offered],”just as the burnt offering of the Most Holy Things, so also all of the Most Holy Things.

עורות קדשי קדשים – the sin-offerings and guilt-offerings go to the Kohanim as the reason is explained further on.

אין המזבח יוכיח – that is to say, you don’t have to state that the Altar will prove that it acquired the meat of the burnt-offering but did not acquire the hide and even you should no be amazed regarding the Holiest of Holy Things for even though the Kohanim acquired their meat, that they would not acquire their hides. This is not a proof, for the altar does not have the hide in any case. But regarding the Kohanim, we have found that they did acquire the hide of the burnt-offering as an a fortiori derivation that they would acquire the hides of the Holiest of the Holy Things.

אין עורותיהן לכהנים – but rather they are burned with their hides.

לא ראיתי עור יוצא לבית השריפה – after it was flayed, if it was found to be an animal with a condition that would cause it to die within twelve months (i.e., it was found to have been torn by another animal or with a congenital defect or afflicted with a severe organ disease, even though that this disqualification was in it prior to the flaying, but it was not recognized until after it was flayed.

שהמפשיט את הבכור ונמצא טריפה – Rabbi Akiba comes to tell us that even if it was a firstling with a blemish/physical defect that was ritually slaughtered in the country on its blemish, and the Biblical verse did not permit it other than through eating, as it is written (Deuteronomy 15:21-22): [“But if it has a defect, lameness or blindness, any serious defect, you shall not sacrifice it to the LORD your God.] Eat it in your settlements, [the impure among you no less than the pure, just like the gazelle and the deer],” but if it died, its hide is forbidden and it requires burial, and it comes to teach us that where its being afflicted with a severe organ disease/congenital defect/torn by another animal was not recognized until after it was flayed, its ritual slaughter is permitted and its hide is flayed, as if its blood was sprinkled/tossed in the Temple.

יאותו הכהנים בעורו – [the priests may make use of its hide] and it is not burned.

אין לא ראיתי ראיה – for perhaps it did not happen during his life that he would find [the animal’s] severe organ disease/congenital defect/torn by another animal until after it was flaying, and if it happened, and he burned it, he didn’t see it.

אלא יצא לבית השריפה – since but prior to the flaying he came. But the Halakha is according to Rabbi Akiba regarding a firstling with a blemish/physical defect when a specialist permitted it. But not if a specialist did not permit it. But the Halakha is according to the Sages regarding a pure firstling, that the flesh [requires] burial and hide [requires] burning.