大方廣圓覺修多羅了義經略疏 1.265

1.265

佛以一音逗於萬類，雖此門統明三觀，而隨機單複不同，故二十五輪各皆證入。此菩薩善能辯別隨類圓音，故當其問。

The Buddha meets myriad kinds of beings with a single voice; although this section comprehensively clarifies the three contemplations, because they differ in being single or combined according to capacities, each of the twenty-five wheels brings realization and entry. This bodhisattva is skilled at discerning the round sound that accords with each class [of beings]; hence it falls to his inquiry.