瑜伽師地論略纂 8.160

8.160

論解五根中云「乃至其慧，唯能起出世間法為其增上」等者，此中解根義，增上者是根。信有二增上，一、能生出世間法而為增上，二、次第能生後法為增上，故名根。前四具二義，故精進等，前亦作法。今慧但有一義，唯於能起出世間法而為增上，無能展轉而生後義。

In the explanation of the five faculties (indriya), where the treatise says, "up to: its prajñā has solely the arising of supramundane dharmas as its predominance," and so forth: here it explains the meaning of faculty; that which has predominance is a faculty. Faith has two predominances: first, it has predominance in being able to produce supramundane dharmas; second, it has predominance in sequentially being able to produce subsequent dharmas; hence it is called a faculty. The first four possess both meanings, hence vigor and so forth were also formulated as dharmas previously. Now prajñā has only one meaning: it has predominance solely in being able to give rise to supramundane dharmas, having no meaning of successively giving rise to subsequent [dharmas].