大般涅槃經集解 68.30

68.30

案僧亮曰：明果是常，成彼岸義也。僧宗曰：更問涅槃無因體，不應是果也。寶亮曰：更興兩問。一謂若涅槃無因，云何名果；二問涅槃亦稱沙門，云何為沙門？名沙門果耶？

Sengliang notes: This clarifies that the fruit is permanent, establishing the meaning of the other shore. Sengzong says: He questions further that since the essence of nirvāṇa has no cause, it ought not to be a fruit. Baoliang says: He raises two further questions. First, if nirvāṇa has no cause, how can it be called a fruit? Second, nirvāṇa is also called a śramaṇa; what is a śramaṇa, and why is it called the fruit of a śramaṇa?