大乘起信論略述 1.85

1.85

論。是故修多羅至向佛智故　述曰。自下第二引經證誠也。心源無念。於中有四。一引經成證。二重釋前文。三舉不覺之失。四顯覺者之德。此初也。在因地時雖未離念。能觀如是無念道理。說此能觀為向智故。以是證知佛地無念。

[Treatise:] "Therefore the sūtra… because it is directed toward the Buddha's cognition."

Commentary: From here, the second part cites a sūtra to verify [the point]: the source of the mind is free of thought. Within this are four parts: first, citing a sūtra to establish proof; second, re-explaining the preceding text; third, presenting the fault of non-awakening; fourth, revealing the virtue of one who has awakened. This is the first. Even while in the causal stage, though one has not yet parted from thought, one can contemplate this principle of thoughtlessness; this contemplation is said to be "directed toward cognition." By this it is verified and known that the Buddha stage is free of thought.