淨名經集解關中疏 2.276

2.276

珠頂王菩薩曰。正道邪道為二。住正道者則不分別是邪是正。離此二者。是為入不二法門　八正八邪為二。若住實相平等無分別名為不二。

Māṇikūṭarāja Bodhisattva said, “The correct path and the erroneous path are two. One who abides in the correct path does not distinguish, ‘This is erroneous, this is correct.’ To be free of these two is entering the dharma gate of non-duality.”
The eightfold correct [path] and the eightfold erroneous [path] are two. Abiding in the true mark, equal and without discrimination, is named non-duality.