金光明經文句記 4.26

4.26

二、「何故」下，引文示。諸部《般若》廣示衍中三教空慧，復以三藏為助道觀，斯為聞持利根之者廣談空相。此空慧機，義持雖利、聞持根鈍，故不廣談四種空相，唯說即邊一中空慧。

Second, from 'for what reason' onward demonstrates by citing texts. The various Prajñā classes broadly demonstrate the emptiness-wisdom of the three teachings within the Mahāyāna, and further take the Tripiṭaka as a contemplation to assist the path; this broadly discourses on the characteristics of emptiness for those of sharp faculties who retain what they hear. The faculties for this emptiness-wisdom, though sharp in retaining meaning, are dull in retaining what they hear; hence it does not broadly discourse on the four kinds of emptiness characteristics, but only speaks of the one Middle emptiness-wisdom wherein the extremes themselves are emptiness.