成唯識論述記 8.71

8.71

述曰：非唯除生起、牽引外，八因全皆名所餘因，所以者何？四中有因緣，攝盡便寬，以方便因非因緣故，彼生起、牽引二因中亦有非因緣種，謂業種等。若唯八因名之，所餘不攝便狹，彼有非因緣，方便不攝故。〈菩薩地〉文，不是盡理，故於此中皆如我說。

The Commentary states: Nor is it that, excluding the generative and traction [causes], the remaining eight causes in their entirety are called the remaining causes. Why is this? Within the four [causes] there are direct causes, so subsuming them completely would be too broad, because auxiliary causes are not direct causes; and within those two causes of generative and traction there are also seeds that are not direct causes, namely karmic seeds and so forth. If only the eight causes were called the remainder, not subsuming [these] would be too narrow, because there are non-direct causes in them that would not be subsumed under the auxiliary. The text of the *Bodhisattvabhūmi* does not exhaust the reasoning; therefore, in this matter, it is all as I explain.