金剛般若經贊述 2.256

2.256

不相似勝者，謂喻勝也，世間福果喻可能喻，受、持之因所得勝果，無喻以可喻也。

'Superiority in having no parallel' means superiority in metaphor; the fruits of worldly blessings can be illustrated by metaphor, but the superior fruit obtained through the cause of receiving and upholding has no metaphor by which it can be illustrated.