維摩經玄疏 5.159

5.159

第六、約觀心明不思議解脫者，若知「婬、怒、癡性，即是解脫」，巧用觀心，不斷不隨，觀心畢竟清淨，即是不思議解脫之義也，故此經云：「諸佛解脫，當於一切眾生心行中求。」若能如是而求，即有三種解脫氣分，類一切三法，在一念觀心也。

Sixth, clarifying inconceivable liberation in terms of contemplating the mind: If one knows that 'the natures of lust, anger, and delusion are themselves liberation,' and skillfully employs contemplation of the mind—neither severing them nor following them, contemplating the mind as definitively pure—this is the meaning of inconceivable liberation. Therefore, this sūtra states: 'The liberation of all buddhas should be sought within the mental activities of all sentient beings.' If one can seek in this way, then there is a portion of the three kinds of liberation, assimilating all threefold dharmas within a single thought of contemplating the mind.