因明入正理論疏 3.190

3.190

述曰：此簡因濫。謂雖有智，藉三相因而觀於境，猶預解起，此即因失，如前決定相違之因。或可釋疑，前但略指三相如前，即有疑云：「如聲、勝論因皆三相，豈緣彼智即為正也？」遂即釋云：「雖具三相，有正智生方真比量。彼智或生疑，故不為正。」

The Commentary says: This eliminates erroneous reasons. That is, although there is a cognition that relies on a reason of three characteristics to observe an object, if hesitant understanding arises, this is an error of the reason, like the aforementioned reason that is contradictory in determination (viruddhāvyabhicārin). Alternatively, this resolves a doubt: previously, it only briefly referred to the three characteristics as before, and someone might doubt: 'Since the reasons of the Śābdikas and Vaiśeṣikas both have three characteristics, could the cognition apprehending them be correct?' It then immediately explains: 'Although it possesses three characteristics, only when correct cognition arises is it true inference. That cognition may give rise to doubt, and hence it is not correct.'