大般涅槃經集解 57.18

57.18

案僧亮曰：斷煩惱業不受生死，名解脫耳。寶亮曰：第三，出解體也。繫縛輪轉，自非深觀境界，無以除生死苦也。

Sengliang comments: Severing afflictive karma and not receiving birth-and-death is simply called liberation. Baoliang says: Third, he identifies the essence of liberation. Bound in transmigration, unless one deeply contemplates the realm, there is no way to eliminate the suffering of birth-and-death.