成唯識論演祕 5.74

5.74

Explanation: Namely, the five beginning with faith, the three anāsrava faculties, and the mental faculty, joy, and equanimity. Some say: Excluding the mental faculty and taking pleasure, in principle it should actually be said that there are twelve faculties, because there is also the mental faculty; the reason it is not stated is that the mental faculty broadly indicates the self-nature of the eight consciousnesses, whereas in the unarrived stage there is only the sixth, and so it is omitted for brevity.