大乘百法明門論開宗義決 1.115

1.115

要有緣法能作等者。謂開導依要具四義。一有緣法。簡諸色法不相應行及諸無為。無能緣故不名為依。二者為主。簡諸心所。雖有緣義而非主故不名為依。三者能作等無間緣。此簡八識異類相望。四者此於後生心心所法開避引導。此簡無學將入無餘最後剎那。要具四義方成依義。

Regarding "requiring a dharma that possesses an object and is able to act": the immediately preceding condition as support (samanantara-pratyayāśraya) must possess four criteria. 1. It must be a dharma that possesses an object: this excludes material dharmas, non-associated formations, and the unconditioned, which are not called supports because they lack the ability to cognize. 2. It must be dominant: this excludes mental factors; although they cognize objects, they are not dominant, and so are not called supports. 3. It can serve as an immediately preceding condition (samanantara-pratyaya): this excludes the eight consciousnesses looking across to different types. 4. It yields its place and guides subsequent minds and mental factors that arise: this excludes the final moment of an arhat about to enter remainderless nirvāṇa. It must possess these four criteria to constitute the meaning of support.