大方廣佛華嚴經隨疏演義鈔 22.2

22.2

第五經，自下第二同生眾。疏謂「不動真而成事」者，即事理無礙為方便，如涉有不迷於空。次「巧以因門契果」者，即事事無礙之方便，因果交徹故。

In the fifth fascicle, from here on is the second [group], the assembly of beings of equal rebirth. When the commentary states "without moving from the true, yet accomplishing phenomena": this is the non-obstruction of phenomena and principle functioning as upāya, just as engaging with existence without being deluded about emptiness. Next, "skilfully using the causal approach to tally with the fruit": this is the upāya of the non-obstruction of phenomenon and phenomenon, because cause and fruit interpenetrate.