成唯識論演祕 7.234

7.234

不以五道而彰位名，但以修等少分，多分、全分不同，分三位也。體俱無漏無為攝故，故名「通體」。

Not using the five paths to indicate the stage names, but merely through the differences of lesser, greater, or complete portions of cultivation and so forth, they are divided into three stages. Because their substantial entities are all subsumed under the anāsrava and unconditioned, they are called 'common entities.'