大般涅槃經集解 70.43

70.43

案僧亮曰：涅槃之中畢竟不滅，亦非滅無也。寶亮曰：非三種之無，乃至有分同互無。涅槃若有，豈無常耶？

Sengliang states: "Within nirvāṇa there is ultimately no cessation, nor is it the non-existence of cessation." Baoliang states: "It is not the three kinds of non-existence, but shares the mutual non-existence of existing portions. If nirvāṇa exists, how could it be impermanent?"