成唯識論演祕 3.516

3.516

問：夫簡法者，前義不盡，須後法簡前。若遮盡，後法何須？如論四義，時、依二法遮簡已周，何繁後二？豈時、依同，境、事別耶？

Question: In setting aside [non-associated] dharmas, when the preceding meaning is not exhausted, subsequent dharmas are needed to set aside what remains. If the exclusions are already exhausted, why are subsequent dharmas needed? For instance, with the four meanings in the Treatise, the two dharmas of time and support have already completely set aside [non-associated ones]; why multiply the latter two? Could it be that when time and support are the same, the intentional object and the substance are distinct?