成唯識論述記 5.490

5.490

述曰：若聖道起在有學及無學，無第七為六依，彼二論所立之宗因，應俱有過。謂若總言，第六意識必有俱生不共增上別依，即違自宗一分宗過，自計聖道及無學，意無所依故。若言，除聖道及無學意識，餘意識必有此依，即有比量相違之過。此一分意識無依，與餘令有依者為比量故。若以六識攝故為因，成前總宗，此因即有自不定過。為如五識，六識攝故，意識有依；為如汝聖道，無學意識，六識攝故，意識無依。若以六識攝故之因成後宗者，便有自法自相相違，決定相違過失。謂彼一分意定無依；六識攝故；如汝聖道、無學意識，故無第七。《攝論》、《大論》比量宗、因，皆有此失，善因明者應乃知之。

The Commentary states: If, when the Noble Path arises in the śaikṣa and aśaikṣa stages, there were no seventh consciousness to serve as the support for the sixth, both the thesis (pratijñā) and the reason (hetu) established by those two treatises would have faults. That is, if one makes the general claim that the sixth mental consciousness definitely has a co-arising, uncommon, predominant, distinct support, that contradicts a part of one's own tenet, because one's own system posits that in the Noble Path and in an aśaikṣa, the mental consciousness has no such support. If one qualifies it, saying that 'excluding the mental consciousness in the Noble Path and in an aśaikṣa, other mental consciousnesses definitely have this support,' then there is the fault of contradiction with inference, because this part of mental consciousness without support serves as an inference against the other [part] claimed to have a support. If one takes 'being included within the six consciousnesses' as the reason to establish the former general thesis, then this reason incurs the fault of being inconclusive in itself (an-aikāntika): is it that, like the five consciousnesses, because it is included within the six consciousnesses, mental consciousness has a support; or is it that, like the mental consciousness in your Noble Path and in an aśaikṣa, because it is included within the six consciousnesses, mental consciousness has no support? If one takes the reason 'being included within the six consciousnesses' to establish the latter qualified thesis, there would be the fault of contradiction with one's own proposition and counter-inconclusive fallacy (viruddha-avyabhicārin). Namely: that part of mental consciousness definitely has no support; because it is included within the six consciousnesses; like the mental consciousness in your Noble Path and in an aśaikṣa; hence there is no seventh. The theses and reasons of the inferences in the Mahāyānasaṃgraha and the Great Treatise would all incur these errors. Those skilled in hetuvidyā should know this.