瑜伽論記 8.147

8.147

第二明三行悟入苦行中，云如是由證成道理，及修增上故至趣入苦行者，結前起後。謂前所明信至教量及以現見比度，此三即是此中證成道理。

Second, in clarifying the entry into the aspect of suffering through three aspects, regarding [the text] from "Thus, through the reasoning of establishment and due to the predominance of cultivation..." down to "entering the aspect of suffering": this concludes what precedes and introduces what follows. It means that the previously explained valid cognition of trustworthy teaching as well as direct perception and inference—these three are precisely the "reasoning of establishment" here.