宗鏡錄 96.25

96.25

十住經云。金剛藏菩薩。是菩薩。三千大千世界所有眾生一時問難。以無量無邊音聲差別問難。是菩薩於一念中。悉受如是問難。但以一音。皆令開解。釋曰。但以一音皆令開解者。萬法從心。何疑不釋。依心所示。何法不融。可謂得佛法之精華。開人天之眼目。

The Daśabhūmika Sūtra says: “Vajragarbha Bodhisattva: if all sentient beings in the trichiliocosm simultaneously pose difficult questions to this bodhisattva with immeasurable and boundless varieties of voices, this bodhisattva, in a single thought-moment, receives all such difficult questions, and with merely a single voice causes all of them to understand.”
Exposition: ‘With merely a single voice causes all of them to understand’: the myriad dharmas proceed from citta, so what doubt is not resolved? As shown according to citta, what dharma is not harmonious? This can be called attaining the essence of the Buddha Dharma and opening the eyes of humans and devas.