說無垢稱經疏 4.164

4.164

贊曰：不但理無有二，智亦不二，離計所執差別法故。實際者真理。智緣真理生，故名建立。舊經無此建立之門。

Commentary: Not only is principle free from duality, knowledge is also non-dual, because it is free from differentiated dharmas of the imagined nature. The limit of reality (bhūta-koṭi) is the true principle. Knowledge arises taking the true principle as its condition; hence it is called 'established'. The older sūtra does not have this aspect of establishment.