成唯識論述記 5.470

5.470

述曰：彼第一說，復如何通？翻彼相應平等行故，煩惱相應恃舉行故。然所引識起多少中，有無學五識起唯六識俱，非七俱，難文意似為有藏識之言，故不說也，無學無藏識故。

The Commentary states: How then could that first theory be reconciled with this? Because [pure manas] operates in equanimity, contrary to association with [defilements], and [defiled manas] operates in arrogance, associated with afflictions. However, regarding the number of consciousnesses that arise as cited, for an aśaikṣa when the five consciousnesses arise, they are accompanied by only the sixth consciousness, not by the seventh. The intention of the challenge text seems to be stated with the assumption of the presence of the ālayavijñāna, and thus it was not mentioned, since an aśaikṣa does not have the ālayavijñāna [by that name].