金剛三昧經論 2.84

2.84

經曰　無住菩薩言：「心、眼、識亦復如是不可思議。」佛言：「心眼識亦復如是不可思議。何以故？色無處所，清淨無名，不入於內；眼無處所，清淨無見，不出於外；心無處所，清淨無上，無有起處；識無處所，清淨無動，無有緣別，性皆空寂。」

The sūtra says: Bodhisattva Apratiṣṭhita said, "Mind, eyes, and consciousness are also like this: inconceivable."
The Buddha said, "Mind, eyes, and consciousness are also like this: inconceivable. Why is this? Form has no location; being pure and without name, it does not enter inside. The eyes have no location; being pure and without seeing, they do not go out to the exterior. The mind has no location; being pure and unsurpassable, it has no place of arising. Consciousness has no location; being pure and unmoving, it has no conditioned differentiation. Their natures are all entirely empty and tranquil."