大般涅槃經集解 54.133

54.133

案道生曰：上道非上，從意為上耳。寶亮曰：反流盡源，故即上也。僧宗曰：既出二重之上，與佛不殊，亦義得為上。中道解故，稱為中耳。寶亮曰：初地以上有當分之解，與佛解不殊，但未滿足為異耳。二乘人未有此解，豈得同稱為上耳。

Daosheng states: The superior path is not superior; it is only superior according to intent. Baoliang states: Reversing the stream to exhaust the source, it is therefore identical to the superior. Sengzong states: Since it transcends the two levels of superior and is not distinct from the Buddha, it also meaningfully attains being superior. Because it is an understanding of the middle way, it is called middle. Baoliang states: Those above the first bhūmi possess an understanding appropriate to their station, which is not distinct from the Buddha's understanding, differing only in not yet being complete. Since people of the two vehicles do not yet have this understanding, how could they equally be called superior?