俱舍論頌疏論本 23.19

23.19

次忍唯法念者，從頂善根有善根生，名為忍法，忍可四諦，最殊勝故。又無退故，名為忍法。忍初安足及後增進，唯法念住，近見道故，故初與後皆法念住。

As for "Next, patience is solely the mindfulness of dharmas": from the root of goodness of the summit, a root of goodness arises, named the 'dharma of patience' (kṣānti). Because its patient acceptance of the four truths is most excellent, and also because it does not regress, it is named the 'dharma of patience'. When patience first gains a foothold and later advances, it is solely the application of mindfulness to dharmas; because it is close to the path of seeing, both its beginning and end are solely the application of mindfulness to dharmas.