維摩經玄疏 6.46

6.46

二、明去取者，若理外二諦，但非世諦，非此經體，真諦亦非也。若理內二諦，三種世諦亦皆不得為此經體也；理內三種真諦，即是法性實相，此經之正體也。

Second, clarifying rejection and adoption: if it is the two truths external to principle, not only is the conventional truth not the substance of this sūtra, the ultimate truth is not either. If it is the two truths internal to principle, the three kinds of conventional truths likewise cannot any of them serve as the substance of this sūtra; the three kinds of ultimate truths internal to principle are precisely the true mark of dharma-nature, the primary substance of this sūtra.