成唯識論演祕 7.673

7.673

釋：非擇、擇滅、不動、想受，如次為四。後二既云「繫時離繫」，明是四中非擇滅攝。

Explanation: Apratisaṃkhyā-nirodha, pratisaṃkhyā-nirodha, the unshakeable (āneñja), and [the cessation of] perception and feeling constitute the four in sequence. Since the latter two are called "separation from fetters at the time of being bound," it is clear that they are subsumed under apratisaṃkhyā-nirodha among the four.