大般涅槃經集解 28.36

28.36

案僧亮曰：有為是苦諦，無為是滅諦。有漏業為苦因，無漏業為道因也。僧宗曰：第四重明有漏因果者，義與毘曇相應也。寶亮曰：重也，指就兩廂易見也。

Sengliang comments: The conditioned is the truth of suffering, and the unconditioned is the truth of cessation. Defiled karma is the cause of suffering, and undefiled karma is the cause of the path. Sengzong comments: The fourth cycle illuminates defiled causes and results, its meaning corresponding with the Abhidharma. Baoliang comments: In this cycle, pointing out the two aspects makes them easy to see.