大般涅槃經義記 6.393

6.393

二辨來意。何故次辨？向前五行世間所修，此十出世，世間行滿便得出世，故次辨之。云何得知此十出世？下文宣說「非是世法，世間所無」故知出世。若論相似功德善根，地前亦有。

2. Analyzing the reason for its occurrence: Why is it analyzed next? The preceding five conducts are practiced in the mundane; these ten are supramundane. When mundane practice is completed, one immediately attains the supramundane; hence it is analyzed next. How is it known that these ten are supramundane? The text below proclaims, "they are not mundane dharmas and are not found in the world"; thus it is known that they are supramundane. If one discusses similar merits and roots of goodness, they also exist prior to the [ten] grounds.