俱舍論記 7.116

7.116

「如是三種至修念等覺分」者，此下第二敘異說。總有三師。此即初說，三入三出。若說三入，便順經言，不淨觀俱行修念等無漏覺分。此中俱聲顯無間義，前後俱也。此文且證勝解作意能入聖道。若於見道唯共相入，通三種出。若於修道、無學道中，通三入、三出。

As for "Such three kinds … cultivate mindfulness and the other factors of awakening": from here on is the second [part], recounting different theories. There are three masters in all. This is the first theory: three enter, three emerge. If one says three enter, it accords with the sūtra which says that practicing in conjunction with the contemplation of the foul, one cultivates mindfulness and the other anāsrava factors of awakening. Here, the word "conjunction" (sahabhāva) expresses the meaning of "immediately following"—prior and posterior being conjoint. This passage merely adduces proof that attention through resolute determination can enter the noble path. If with respect to the path of seeing, one enters solely by [attention to] common characteristics, while emerging extends to three kinds. If in the path of cultivation and the path of the aśaikṣa, both entering and emerging extend to the three.