成唯識論述記 2.689

2.689

述曰：總結前所明，釋非道理，謂前所破，初就外宗設許真事等為難；後就小乘等共許真事為難。問曰：若爾，世尊如何知共相法——苦、無常等？應不能緣二、三諦等。答：如《佛地論》第六卷中，廣有三解。如薩婆多，五蘊是自相，苦、無常等理是共相。因明乃有多重，並如別處廣敘，不能煩引，學者應知。

The Commentary states: This summarizes the previous explanations and shows that [the opponent's objection] is unreasonable. That is, regarding the previous refutations, at first an objection was raised based on the external schools by tentatively granting real entities; later, an objection was raised based on the real entities mutually accepted by the Hīnayāna and others. Question: If that is so, how does the World-Honoured One know phenomena of universal characteristics—such as suffering, impermanence, and so forth? He would be unable to condition the two truths, the three truths, and so on. Answer: As in the sixth fascicle of the Buddhabhūmi-śāstra, there are three extensive explanations. As in the Sarvāstivāda, the five aggregates are particular characteristics, while principles such as suffering and impermanence are universal characteristics. In Buddhist logic (hetuvidyā) there are many layers, all of which are extensively described elsewhere; they cannot be cited at length here, and students should know them.