瑜伽論記 16.317

16.317

十力是慧根及具知根者，道理十力非唯是慧，亦取同時信等五根，以慧照境功能，故偏言慧。十力居無學位故，攝具知根，四無畏，五根及即此一具知根攝，如無畏，不護亦然，皆用信等及具知根為體。及不護、無畏，通約五根出體者，無強弱故，皆以為體，或影略門。

As for 'the ten powers are the faculty of discernment and the faculty of the one who has fully known': in principle, the ten powers are not merely discernment, but also take the simultaneous five faculties of faith and the rest; because discernment functions to illuminate the object, it is singularly referred to as discernment. Since the ten powers abide in the stage of the non-learner, they subsume the faculty of the one who has fully known. The four fearlessnesses are subsumed by the five faculties and this same single faculty of the one who has fully known. As with the fearlessnesses, the non-protections are also like this: they all take faith and the rest and the faculty of the one who has fully known as their essential nature. And in identifying the essential nature of the non-protections and fearlessnesses universally in terms of the five faculties: because there is no relative strength or weakness, all are taken as their essential nature; or this is an abridged, partial presentation.