金剛經纂要刊定記 1.115

1.115

能開下，法也。於中能字屬佛。開字通佛及法，謂在佛為能開，在法為所開。般若三空句五字，唯局法也。然於此中具教理行果，般若果也，以是到彼岸慧故。三空理也。句即教也。理果合論行也。以慧照理是菩薩行故。

From "Capable of revealing" downward is the Dharma. Herein, the word "capable" belongs to the Buddha. The word "revealing" applies to both Buddha and Dharma: with respect to the Buddha it is the revealer, and with respect to the Dharma it is what is revealed. The five characters "the phrases of the three voids of prajñā" are restricted solely to the Dharma. Herein, teaching, principle, practice, and fruition are fully present: prajñā is the fruition, because it is the wisdom that reaches the other shore; the three voids are the principle; "phrases" are the teaching; and discussing principle and fruition together is practice, because using wisdom to illuminate principle is the bodhisattva practice.