Negaim 8:8 - 8:9

מתוך הטהרה טמא – as for example, a person who comes completely white at the outset, and after the isolation/quarantine/being shut up or the declaration of being a certified leper he became pure, if the tips of the limbs returned on him and were uncovered, he is pure, as we explained above (i.e., in the previous Mishnah). But if during a state of cleanness/purity, they returned and became uncovered at one instant, he is impure because of spreading, and that is what it states, that if it blossomed/erupted (the white eruption which causes the leper to be declared clean) at once while in a state of purity, he becomes impure, as we explained in the Mishnah above, that if it his entire body blossomed/erupted at a single instant, he is also impure like [the case of] part of his body blossoming/erupting.

פטור מן הפריעה ומן הפרימה (he is exempt from the letting the hair grow in neglect and rending his garments – see Leviticus 13:45) – all the while that he is in quarantine/isolation. But whereas he is pure/clean while he is in a state of being a certified leper, he is obligated for letting his hair grow in neglect and tearing his clothing, all the while that he is a certified leper. פריעה ופרימה: His clothing will be torn and his hair in disarray.

מטמאין בביאה – if they came into the tent, everything that is in the tent is defiled.

פרחה בכולו ואח"כ נתגלו בו ראשי אברים – here we are speaking about [the case] that he (i.e., the Kohen) did not manage to declare him a certified leper until it had erupted/blossomed throughout all of his body and uncovered the tips of the limbs, that Rabbi Yishmael compared him to someone who comes in totally white at the outset except for the tips of the limbs, which requires isolation/quarantine/being shut up. But Rabbi Eleazar ben Azariah holds that since whereas it did not erupt/blossom, he (i.e., the Kohen) would declare him to be a certified leper, his law is like a small bright white spot on the skin which has on it quick flesh, for if it had erupted on his entire body and afterwards, the tips of the limbs were uncovered/revealed, he would be impure. And there is more to explain, that even if he had declared him a certified leper with quick flesh and it had erupted throughout all of the body and he had purified him, as Rabbi Yishmael holds, that one does not defile with the reappearance of the tops of the limbs, that one defiles with the reappearance of the tops of the limbs that is after the eruption/blossoming [which causes the leper to be declared clean], where he is pure in the practice of eruption/blossoming, but here, it is not the practice of eruption/blossoming where he is pure, for had there been a diminution of quick flesh from like the size of a lentil, he would be pure.