瑜伽論記 20.189

20.189

次明四正斷，云何菩薩為令未生惡不善法，得不生故，生欲乃至生思生捨者，修四正勤一一有八斷行，如前廣說。謂於真如境繫心令住者，四四正勤行還觀真如。為令一切至乃至廣說者，為令二縛得不生故，生欲等八斷行。如令已下類後三正勤行也。

Next, the four right abandonments are clarified: As to how a bodhisattva, in order to prevent unarisen evil and unwholesome dharmas from arising, gives rise to desire and up to giving rise to thought and giving rise to equanimity—in cultivating the four right strivings, each has eight factors of abandoning, as explained in detail earlier. As for 'binding the mind to abide on the object of tathatā', the four [applications of mindfulness and] four right strivings in their activity turn back to contemplate tathatā. As for 'In order to cause all... and so forth up to detailed explanation', it means that in order to prevent the two bonds from arising, one generates the eight factors of abandoning, such as desire. The passage from 'in order to cause...' onward exemplifies the remaining three activities of right striving.