大方廣佛華嚴經隨疏演義鈔 19.46

19.46

Regarding the Commentary's words 'In turning the wheel of the Dharma, non-retrogression has four types', etc.: here there are two meanings of the four types of non-retrogression. The former meaning is from the Daśabhūmikā-śāstra, exclusively spoken in terms of the great function of benefiting others. The latter four types of non-retrogression are as commonly discriminated: faith refers to the ten faiths, because ten thousand kalpas have already been fulfilled, and it is also the sixth non-retrograde mind. Stage refers to the seventh non-retrograde dwelling of the ten dwellings, not retrogressing or falling into the stages of śrāvakas and pratyekabuddhas, hence called stage non-retrogression. Realization refers to the first ground, having already realized tathatā and attained non-retrogression. Thought refers to the eighth ground and above, where thought after thought enters the Dharma-stream and mind after mind proceeds to quiescence and extinction, thus attaining non-retrogression.