成唯識論了義燈 2.18

2.18

Explaining the performance of karma and the reception of retribution: the Mahāyāna distinguishes presence and absence among the eight consciousnesses. The first six possess both; the seventh lacks both: because it is indeterminate, it does not perform karma, and because it is defiled, it does not receive retribution; the eighth receives retribution, being fruition: because it is fruition, it cannot perform karma, its nature being indeterminate. The five schools—Vātsīputrīya, Sammatīya, Mūlasūtra, Bhadrayānīya, and Ṣaṇṇagarika—uniformly say that the five consciousnesses cannot perform karma or receive retribution, while the sixth can do both. The Mahāsāṃghika and others uniformly say that all six consciousnesses can both perform karma and receive retribution. The Sarvāstivādins and others hold that the five consciousnesses receive retribution but do not perform karma, while the sixth can do both. (This explanation is hearsay; I have not seen authentic textual authority.)