成唯識論述記 8.630

8.630

述曰：既未成佛圓證無相大悲一味平等之解，若不執菩提可求、有情可度為實有者，無有因由可能發起猛利大悲及猛利願。以所知障，可求可度執為先故，方能發起無漏業故，說業為因，以是勝故。無明為緣以疎遠故，非如煩惱資有漏業，但緣義同少分相似。

The Commentary states: Because they have not yet attained Buddhahood and fully realized the signless understanding of the single taste and equality of great compassion, if they did not grasp bodhi as something to be sought and sentient beings as something to be liberated as truly existent, there would be no reason or cause whereby they could generate fierce great compassion and fierce vows. Because the cognitive hindrance grasps what is to be sought and what is to be liberated beforehand, they are only then able to give rise to undefiled karma; hence karma is spoken of as the cause, because it is superior. Ignorance is spoken of as the condition, because it is distant. It is not like defilements sustaining defiled karma; it merely shares the meaning of a condition, being slightly similar.