金剛經纂要刊定記 6.106

6.106

說法無自相者。論云：「釋無法可說」，謂相即性故，言說緣生無自性故。又解：不離法界下二句，俱是釋無法可說。謂此二種不離法界，法界之外無別二法自相可得，以此二法自相本空不可得故，此即以下句釋上句也。

"Preaching the Dharma has no self-characteristic": the treatise says: "This explains 'there is no Dharma that can be preached.'" This means that marks are identical to nature, and that spoken words are conditionally arisen and without self-nature. Another interpretation: the two lines from "not apart from the dharmadhātu" downwards both explain "there is no Dharma that can be preached." This means that these two kinds [of Dharma] are not apart from the dharmadhātu, and apart from the dharmadhātu there are no distinct self-characteristics of the two dharmas that can be found; because the self-characteristics of these two dharmas are fundamentally empty and unattainable, this uses the lower line to explain the upper line.