成唯識論述記 9.309

9.309

述曰：若言異者，無別體故，謂妄所執名初，非離依他別有初性體。若彼有體可說異故，圓成實性是依他之實性，不可說三性異也，非不異者，妄執是初性，緣起是第二性，真義是第三性，既此三別，不可言非不異，如前所引《攝大乘》說。

The Commentary states: If one were to say they are different, [that would be incorrect] because there is no separate substance: that is, what is falsely grasped is called the first [nature], and there is no substance of the first nature separate from the other-dependent. If it had substance, one could speak of difference; and since the consummate nature is the real nature of the other-dependent, one cannot say the three natures are different. As for their not being non-different: false grasping is the first nature, causal origination is the second nature, and true meaning is the third nature. Since these three are distinct, one cannot say they are not non-different, as stated in the previously cited Mahāyānasaṃgraha.