瑜伽論記 8.289

8.289

自下廣辨，如是種姓品之初首，於中種姓一品，即解種姓持，第二發心品，即解發心持，後三品已，後有十六品，總是行方便持。

Below is the detailed analysis. At the beginning of this Gotra Chapter: within it, the single Gotra Chapter explains the support of gotra; the second chapter, Resolving the Mind (Cittotpāda), explains the support of resolving the mind; after these two chapters, there are sixteen chapters following, which altogether constitute the support of the skillful means of practice.