宗鏡錄 96.19

96.19

佛語經云。佛言。若有處語。是魔王語。是魔見語。不名佛語。善男子。若無一切諸處語者。是名佛語。釋曰。無一切諸處語者。因是無所證之法。亦無能證之智。既無有法。豈可說耶。但了唯心。自然無語。無語是真語。故云無法可說。是名說法。若著處所。若有所說。悉違本宗。不見法性。如云報化非真佛。亦非說法者。

The Buddhabhāṣita Sūtra says: “The Buddha said: ‘If there are words of a localized place, these are the words of the Māra king, these are words of demonic views; they are not called the Buddha's words. Good sons, if there are words without any localized places, these are called the Buddha's words.’”
Exposition: That which has no words of any localized places is because there is no dharma to be realized, nor is there any wisdom capable of realizing it. Since there is no dharma, how could it be spoken? Simply understand that it is citta-only, and naturally there are no words. Having no words is true speech; therefore it is said: “Having no dharma that can be spoken is called speaking the Dharma.” If one clings to places, or if there is something spoken, all contradicts the fundamental source and fails to see the dharmatā. As it is said: “The retribution and transformation [bodies] are not the true Buddha, nor are they speakers of the Dharma.”