俱舍論疏 7.60

7.60

「論曰至有作用故」，釋因緣中二因也。俱有、相應於現在法能與果故，現在之法名為滅時。言「令俱生法有作用故」，即是令俱生果能取與果。雖說諸因是與果時，然此二因義得兼二。尋其理趣，住、滅同時，住時取果名現在故。若住別時，滅時非取果，應非是現在。

On the Śāstra's statement: "The treatise says ... because it has activity": this explains two causes within the cause-condition. Because the coexistent and associated causes can give fruits to present dharmas, present dharmas are called "at the time of cessation". When it says "because it causes co-arising dharmas to have activity", it means causing co-arising fruits to be able to grasp and give fruits. Although it is said that all causes are at the time of giving fruits, these two causes can implicitly encompass both [grasping and giving]. Investigating its reasoning, abiding and cessation are simultaneous, because grasping a fruit at the time of abiding is called "present". If abiding were at a different time, then cessation would not be grasping the fruit, and it should not be present.