成唯識論述記 3.319

3.319

述曰：於無漏位，勝惠相應，雖無籌度取相分別而澄淨故，非如有漏體是滓濁。今設無用，亦現彼影，即緣於無及心等影、無為影等，以親證故，知無是無，故緣無等。

The Commentary states: In the anāsrava state, associated with supreme wisdom, although it lacks deliberation and conceptual discrimination that grasps marks, because it is limpid and pure, it is not like the sāsrava whose entity is turbid. Now, even if they lack functional efficacy, it also manifests their images; that is, it cognizes non-existence, the images of mind, etc., and the images of unconditioned dharmas, etc. Because it directly realizes them, it knows non-existence to be non-existence, and therefore cognizes non-existence and so forth.