大方廣圓覺修多羅了義經略疏 2.42

2.42

The true nature is unarisen and originally pure. Sentient beings, not having awakened, perceive arising with deluded minds; arising must inevitably cease, and therefore it is saṃsāra. Now awakening to the dharmatā, they comprehend that the mind is unarisen; when the mind does not arise, saṃsāra is cut off forever. Patiently approving such is called the endurance of the non-arising of dharmas. All above is praise.