成唯識論述記 8.259

8.259

述曰：即彼八所熏發，親能生彼八，居在第八識上功能名二取習氣，即前八中皆具二義，名為習氣，皆有所生、能生義故。本、末若為異熟解者，取為所取，故亦具二義，即名言種由取二而生，故能生本識，此非善、不善，但是無記親生之種。此中二取通七識所熏，隨其所應生第八識相、見分等。此二取言欲顯何義？

The Commentary states: What is perfumed and generated by those eight, being directly capable of generating those eight and residing as capabilities upon the eighth consciousness, is called the vāsanā of the two graspers. That is, among the former eight, each possesses both meanings and is called vāsanā, because they all have the meaning of what is generated and what generates. If root and branch are explained as ripening, then grasping them is what is grasped, and thus they also possess both meanings. That is, nominal seeds are generated by grasping the two, and can therefore generate the root consciousness; these are not wholesome or unwholesome, but are merely non-defined seeds that directly generate [their fruit]. Here, the two graspers are perfumed by all seven consciousnesses, generating the nimittabhāga, darśanabhāga, and so forth of the eighth consciousness as appropriate. What meaning does this phrase "two graspers" intend to show?