成唯識論述記 2.559

2.559

正量及譬喻師立三無為，無有體性。毘婆闍婆提說，三滅中立無常滅，亦是無為。薩婆多部亦立三種，然是實有。乃至虛空，或說唯一或說為多。然大乘中，此及百法但唯說六。《瑜伽》五十三說二，謂空、非擇。《五蘊論》說有四，不說不動等二，即擇滅故。又《瑜伽論》、《對法》、《顯揚》等論說有八種，於此六中真如為三，約詮、約理所望別故。

The Saṃmatīyas and the Dārṣṭāntikas establish three unconditioned phenomena, which have no real substance. The Vibhajyavādins state that among the three cessations they establish impermanence-cessation, which is also unconditioned. The Sarvāstivāda school also establishes three kinds, but holds them to be real existents. As for space, they explain it either as solely one or as plural. However, in the Mahāyāna, this treatise and the Treatise on the Hundred Dharmas speak of only six. Yogācārabhūmi fascicle fifty-three speaks of two, namely space and non-deliberation. The Pañcaskandhaka-śāstra speaks of four, not mentioning the two such as unshakeability, because they are cessation through deliberation. Furthermore, treatises such as the Yogācārabhūmi-śāstra, Abhidharma-samuccaya, and Prakaraṇāryavācā speak of eight kinds, dividing tathatā into three among these six, because of differences in perspective regarding expression and principle.