御注金剛般若波羅蜜經宣演 2.234

2.234

經。何以故至應作如是觀　演曰。言何以故者。准此論生下經文。何以說法。能不染者以諸有為如幻等故。非如所見有自性故。故說法時能不染也。非但說法不染亦即是流轉不染。彼論答徵意以諸有為如幻等故。即真而說不言化相離真而有也。准彼論疑即何以故釋九喻。略以七門分別。一說意。二開合。三次第。四屬當法喻。五建立。六問答。七說喻勝益。初說意者。此論流轉不染明佛示現受於生死。常在三界化利眾生。以了有為如幻等故。不為所染故有此文。彼論為斷二十八佛涅槃疑。論云。若諸佛如來常為眾生說法。云何言如來入涅槃。為斷此疑。是故說彼偈。此義云何。偈言。

Sūtra: Why is this? Up to: should contemplate it in this way. Exposition: 'Why is this?'—according to this treatise, it introduces the subsequent sūtra text. Why is teaching the Dharma able to be uncorrupted? Because all saṃskṛta phenomena are like illusions, etc.; since they do not have intrinsic nature as they are seen, when teaching the Dharma one can be uncorrupted. It is not only that teaching the Dharma is uncorrupted, but also that saṃsāric transmigration is uncorrupted. That treatise answers the inquiry with the idea that because all saṃskṛta phenomena are like illusions, etc., he speaks according to reality and does not say that the nirmāṇa marks exist apart from reality. According to that treatise, the doubt corresponds to 'Why is this?' In explaining the nine analogies, they are distinguished briefly through seven gates: first, the intention of the teaching; second, opening and combining; third, the sequence; fourth, matching dharmas to analogies; fifth, establishment; sixth, questions and answers; seventh, the superior benefits of explaining the analogies. First, the intention of the teaching: this treatise's 'uncorrupted saṃsāric transmigration' clarifies that the Buddha demonstrates taking birth and death, constantly residing in the three realms to transform and benefit sentient beings. Because he realizes that saṃskṛta phenomena are like illusions, etc., he is not defiled by them; hence there is this text. That treatise is meant to eliminate the twenty-eighth doubt regarding the Buddha's nirvāṇa. The treatise says: 'If the Buddhas, Tathāgatas, constantly teach the Dharma for sentient beings, why is it said that the Tathāgata enters nirvāṇa?' To sever this doubt, that verse was spoken. What is its meaning? The verse says: