金剛經纂要刊定記 3.92

3.92

四中言說者。經從「須菩提白佛言：世尊！乃至法尚應捨何況非法。」問：「法身非言說，何故以言說為法身耶？」故疏釋云：「因言顯理故。」此有二意：一、以言說顯於法身，法身非言說。二、文字性離即是法身，無別法身耳。

In the fourth, regarding "spoken explanation": the sūtra goes from "Subhūti addressed the Buddha, saying: 'World-Honoured One!..." up to "...even Dharma should be cast aside, how much more so non-Dharma." Question: "The dharmakāya is not spoken explanation; why is spoken explanation taken as the dharmakāya?" Therefore the Commentary explains: "Because principle is revealed through speech." This has two meanings: 1. Revealing the dharmakāya through spoken explanation, while the dharmakāya is not spoken explanation. 2. The detachment inherent in written words is itself the dharmakāya; there is no separate dharmakāya.