瑜伽師地論略纂 5.16

5.16

Furthermore, because one portion is severed, pure concentration and one portion of undefiled [wisdom] suppress defilements; hence it is called 'nirvāṇa of that portion'. The undefiled [state] that severs defilements is not unconditioned; therefore, being called non-definitive, it is 'nirvāṇa of that portion'. / Furthermore, attaining non-analytical cessation (apratisaṃkhyā-nirodha) without the nature of severance, being able to realize dhyāna, is also called 'nirvāṇa of that portion'. True nirvāṇa is called 'nirvāṇa of this portion'; metaphorical nirvāṇa is called 'that portion', where 'that portion' has the meaning of similarity in kind. That metaphorical kind resembles the real, so it is called 'nirvāṇa of that portion'; it is also a differentiation of nirvāṇa, called 'differentiated nirvāṇa'.