Sūtra on the Great Collection of Dharma Teachings 2.37

2.37

「復次，八解脫，是佛所說。謂內有色想觀外色解脫、內無色想觀外色解脫、淨解脫具足住、空無邊處解脫、識無邊處解脫、無所有處解脫、非想非非想處解脫，想受滅解脫。

"Furthermore, the eight liberations were taught by the Buddha: the liberation of one possessing visible form internally contemplating external visible forms; the liberation of one without internal perception of visible form contemplating external visible forms; fully dwelling in the pure liberation; the liberation of the ākāśānantyāyatana; the liberation of the vijñānānantyāyatana; the liberation of the ākiñcanyāyatana; the liberation of the naivasaṃjñānāsaṃjñāyatana; and the liberation of the cessation of perception and feeling.