金剛般若經依天親菩薩論贊略釋秦本義記卷上 1.98

1.98

經。以須菩提實無所行而名須菩提是樂阿蘭那行　第四順成也。實無所行者。謂心善解脫。於二障中不復行故。而名須菩提是樂阿蘭那行者。由斷二障故樂行也。

[Sūtra:] "'Because Subhūti in reality practices nothing, he is named "Subhūti who delights in the practice of araṇā."'"

This is the fourth [part], affirming in accordance. "In reality practices nothing" means that the mind is well liberated, no longer moving within the two obstructions. "Is named Subhūti who delights in the practice of araṇā" means that due to having severed the two obstructions, he delights in the practice.