大般涅槃經集解 41.46

41.46

案僧亮曰：《涅槃經》興二種法，皆不滅也。僧宗曰：以九重法相對，明常法不滅，無常不滅也。寶亮曰：第一事，舉世法，以音聲章句有滅。第一義非世間可毀，故不滅也。智秀曰：第三翻，將欲答，先列諸法，略明興廢在文，不在於理。

Sengliang comments: When the Nirvāṇa Sūtra flourishes, the two kinds of Dharma both do not perish.
Sengzong comments: By contrasting nine levels of dharmas, he clarifies that permanent dharmas do not perish, and impermanent dharmas do not perish.
Baoliang comments: In the first matter, he adduces worldly dharmas, showing that sounds, words, and phrases are subject to destruction. The ultimate truth cannot be destroyed by the world; therefore it does not perish.
Zhixiu comments: In the third section, about to answer, he first lists various dharmas, briefly clarifying that flourishing and decline pertain to the text, not to the principle.