成唯識論掌中樞要 1.118

1.118

破大自在天中：論文四因，如次以下難於上宗，然更互為因。一因難三宗亦得，如理應知。

In refuting Maheśvara: the four reasons in the text of the treatise challenge the higher theses with the lower ones in succession, yet they mutually serve as reasons. One reason challenging three theses is also admissible; this should be understood in accordance with the principle.