成唯識論述記 1.27

1.27

瞿波論師云：三業禮者，欲顯大師有天眼故，以身業禮；有天耳故，以語業禮；有他心故，以意業禮。又生三業圓滿善故，以三業禮。如《僧祇律》中說：在明，去遠，須以身禮，以可見故；在闇，去近，須以語禮，以可聞故；在闇，復遠，須以意禮，不可見聞故。又顯敬禮三輪因故，須三業禮。

Master Gopa says: Homage through the three actions is paid because, wishing to manifest that the Great Master possesses the divine eye, one pays homage through physical action; because he possesses the divine ear, one pays homage through vocal action; because he possesses the knowledge of others' minds, one pays homage through mental action. Furthermore, because one generates the wholesome [roots] that are complete in the three actions, one pays homage through the three actions. As taught in the Mahāsāṃghika-vinaya: in the light and at a distance, one must pay homage with the body, because one can be seen; in the dark and close by, one must pay homage with speech, because one can be heard; in the dark and again at a distance, one must pay homage with the mind, because one can neither be seen nor heard. Moreover, to manifest the cause for paying homage to the three wheels, one must pay homage through the three actions.