成唯識論述記 8.263

8.263

述曰：頌言俱者，謂前諸業，及後二取之種子俱，即是同時感生果也，非如小乘異熟因、果必不同世也。作時、受時雖世不同，種正受果時，必與果同世，以過、未世無體性故。問：於生果位親者因緣，若論感果力能勝者唯是業種，或二種既俱，何故頌中先說業種，後說因緣？

The Commentary states: When the verse says "together", it means that the former karmas and the latter seeds of the two graspers are together; that is, they simultaneously bring about and generate the fruit, unlike the Hīnayāna where the ripening cause and fruit must belong to different time periods. Although the time of action and the time of receiving belong to different time periods, when the seed is directly receiving its fruit, it must belong to the same period as the fruit, because past and future periods lack real entity. Question: In the state of generating the fruit, what is direct is the causal condition, and if one considers the capability to bring about the fruit, what is superior is solely the karmic seed; or since both kinds [of seeds] are together, why does the verse state the karmic seed first and the causal condition afterwards?