大乘起信論略述 2.57

2.57

論。若心有動非真識知　述曰。此即對明顯照無例義也。此中應言若心有動。非真識知。心性無動明是真實識知義故。以文略故。謂若心起九種妄動。非真識知。心性無動即說心性真識義故。

[Treatise:] If the mind has movement, it is not true knowing.
[Exposition:] This reveals the meaning of being unlike [such movement] through contrast. Here it should say: If the mind has movement, it is not true knowing; because the mind-nature is free from movement, it clearly has the meaning of being true knowing. Because the text is abbreviated, it means: if the mind gives rise to the nine kinds of deluded movements, it is not true knowing; because the mind-nature is free from movement, the mind-nature is said to have the meaning of true knowing.