淨名經集解關中疏 2.514

2.514

至不退轉成就六度　此三明理深教妙起行必勝文四。此初不退行也。如彌勒章相。肇曰。不退所以至六度。所以成大業之所出莫由斯典。

"'Leading to the stage of non-retrogression and accomplishing the six perfections.'" / This third clarifies that when the principle is profound and the teaching is wondrous, the practice aroused is necessarily superior; it has four parts. This first is non-retrograde practice, as in the chapter on Maitreya. / Sengzhao says: "That by which non-retrogression is reached and the six perfections are accomplished, and from which great deeds emerge—none does not proceed from this scripture."