大般涅槃經集解 45.25

45.25

案道生曰：離難聞不聞也。若果不如向言，便是聞復聞也。夫聞不可重聞，猶不可聞必不可聞也。僧亮曰：重難無法不應可聞，如已聞之法而不可重聞；況本來定無法，而當可聞？寶亮曰：此下頻借四譬結成前難也。此第一譬，明聲是可聞法。涅槃既非音聲，云何而言聞所不聞耶？智秀曰：第二難也。謂已謝者，不可聞也。

Daosheng notes: This is a separate objection against hearing and not hearing. If it were truly not as previously said, then this would be hearing what is heard again. Hearing cannot be repeatedly heard, just as what is unhearable must be unhearable. Sengliang says: This repeats the objection that a nonexistent phenomenon should not be hearable; just as a phenomenon that has already been heard cannot be heard again, how much less could that which is fundamentally and definitively nonexistent be hearable? Baoliang says: From here below, four analogies are successively borrowed to conclude the preceding objection. This first analogy clarifies that sound is a phenomenon that can be heard. Since nirvāṇa is neither voice nor sound, how can it be said that one hears what was not heard? Zhixiu says: This is the second objection. It states that what has already ceased cannot be heard.