瑜伽論記 21.115

21.115

九彼隨順法相。謂則於彼多所作法者，於涅槃修隨順法，多有所作，名彼隨順。

Ninth, the characteristic of dharmas conforming to it. "Those dharmas that are of much service to that": cultivating conforming dharmas toward nirvāṇa performs many functions, hence called conforming to it.