大般涅槃經集解 8.50

8.50

案僧宗曰：此始是窮因之致也。前明持戒護法，未為極因；若照解圓明，始稱善業也。就答善業文中，自有五重相生，顯之下文也。此一重，明若於性生信，為善業之始也。智秀曰：此第十一問佛性理也。若眾生無我，則一化便盡，云何得與善業以趣佛果耶？

Sengzong states: This marks the beginning of exhausting the purport of the cause. Previously, clarifying the keeping of precepts and protecting the Dharma was not yet the ultimate cause; only when illuminating understanding is complete and clear does it deserve to be called good karma. Within the text answering 'good karma,' there are naturally five successive stages of arising, which are revealed in the text below. This single stage clarifies that if faith arises regarding the nature, that is the beginning of good karma. Zhixiu states: This eleventh question concerns the principle of the buddhadhātu. If sentient beings are without self, then they would end with a single lifespan; how could they perform good karma to advance toward the fruit of buddhahood?