俱舍論疏 6.302

6.302

論「過去可然至與等流果」，問也。相應、俱有，因果同時，可說取時即能與果。等流因果前後不同，如何因現取時即能與果？

The Śāstra states: "The past may well be so; [...] gives an outflowing fruition?" This is a question. Associated and co-existent causes are simultaneous with their fruition, so one can say that at the time of grasping, they are capable of giving fruition. Causes and fruitions of outflow differ in before and after; how then can the cause, while present and grasping, directly give its fruition?