仁王護國般若波羅蜜多經 2.19

2.19

At that time, King Prasenajit, beholding the Buddha's supernormal transformations—seeing the Vairocana Tathāgata upon the thousand-petaled terrace, a thousand transformation Buddhas on the thousand petals, and measureless Buddhas within the thousand petals, each speaking the Prajñāpāramitā—addressed the Buddha, saying: 'Bhagavat! Such measureless Prajñāpāramitā cannot be cognized by consciousness, cannot be known by wisdom. How can good sons clearly understand, awaken to, and expound this sūtra for others?'