金剛般若經依天親菩薩論贊略釋秦本義記卷上 1.98

1.98

[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.