大乘起信論略述 2.190

2.190

論。是正念者至念念不可得　述曰。此示正念相也。謂離所取能取二相心無所得契證真如。是正念相。當知唯心無外境者。此顯正念離所取相也。即復此心亦無等者。此顯正念離能取相。離二取相都無所念契證心源。名得住也。

[Treatise:] This correct mindfulness ... from thought-moment to thought-moment are unobtainable. [Exposition:] This shows the characteristics of correct mindfulness. That is, departing from the two marks of the grasped and the grasper, the mind obtains nothing and accords with and realizes suchness—these are the characteristics of correct mindfulness. "One should know that it is only mind, without external objects": this shows that correct mindfulness departs from the marks of the grasped. "Furthermore, this mind also has no [form]," etc.: this shows that correct mindfulness departs from the marks of the grasper. Departing from both grasped and grasper, having nothing at all to be conceptualized, and realizing the source of the mind is called "attaining abiding."