成唯識論演祕 2.35

2.35

詳曰：以折宗法而為其因，成非實有，通前三量亦應無失，已成宗法得為因故。

I examine [this and suggest]: Taking the property of the proposition being analyzed as the reason to establish that it is not substantially existent should also apply without fault to the preceding three inferences, because an already established property of the proposition can serve as a reason.