成唯識論述記 5.518

5.518

此下廣前法執位中有三：初總廣一切唯法執位；次更重諍八地以上；後解法執染、不染義。

From here down, expanding on the previous stage of attachment to dharmas has three parts: first, generally expanding all stages of exclusive attachment to dharmas; next, re-disputing from the eighth bhūmi onward; finally, explaining the meaning of defiled and undefiled with respect to the attachment to dharmas.