成唯識論述記 8.179

8.179

述曰：謂有種子於現行法能助與力，如根種於識種，作意種於識等。二、又雖無助力，但不為障，如異識種子望異現行等，皆是增上緣。然簡無漏種與有漏現行為生等緣，彼能障礙故，雖亦是增上緣，不相違因攝。然於生現分別中，非能不障，故非也；或亦是此緣，現未為障故，障必不生故，此中但簡障礙現行，令不生之緣故，此即種望染現為緣訖。

The Commentary states: This means that there are seeds that can give assistance and force to actual dharmas, as the seeds of sense-faculties do toward the seeds of consciousness, or the seeds of attention (manaskāra) do toward consciousness, etc. Second, even though they lack assistive force, as long as they do not obstruct—as seeds of a different consciousness in relation to a different actual state, etc.—they are all sovereign conditions. However, anāsrava seeds are excluded from serving as conditions for the production and so forth of sāsrava actual states, because they are capable of obstructing them; although they are also sovereign conditions, subsumed under the non-obstructing cause, yet in producing actual discrimination, they cannot fail to obstruct, hence they are not [such conditions]. Or they may also be this condition because they have not yet formed an obstruction in the present, for if they obstructed, [the actual state] would definitely not arise; here it merely excludes the condition that obstructs the actual state and prevents it from arising. This concludes [the discussion of] seeds acting as conditions with respect to defiled actual states.