大乘百法明門論疏 2.61

2.61

言第五無為法者，此則第一牒章。略有六種等者，此則第二舉數列名。言虛空者，謂無色性、容受一切所作業故，故名虛空。謂慧有簡擇之能，故名為擇，由擇得滅，故名擇滅。因緣不會，諸法不生，非由慧滅，名非擇滅。第四靜慮以上，唯有捨受現行，不為苦樂所動，故名不動。滅盡定中，心、心法滅，想、受用勝，就強為名，故則是此名想受滅。法性本來常自寂滅，不遷動義，名為真如。此則第五明無為法。

Stating "Fifth, asaṃskṛta-dharmas" is the first part, stating the heading. Stating "are, in brief, of six kinds" and so forth is the second part, giving the number and listing their names. 'Space' means having no material obstruction and accommodating all actions that are performed; hence it is named 'space'. Wisdom has the capacity of deliberation, and is therefore called 'deliberation'; because cessation is obtained through deliberation, it is named 'cessation through deliberation'. When causes and conditions do not assemble, dharmas do not arise; this is not cessation brought about by wisdom, hence it is named 'cessation not through deliberation'. Above the fourth dhyāna, only neutral feeling (upekṣā-vedanā) is manifest, unmoved by suffering and pleasure; hence it is named 'immobility'. In the absorption of cessation, citta and caitta-dharmas cease, and because conception and sensation have superior activity, it is named after the predominant [factors]; thus it is named 'cessation of conception and sensation'. The dharma-nature is originally and always quiescent in itself and has the meaning of not altering; this is called 'suchness'. This is the fifth section, clarifying asaṃskṛta-dharmas.