肇論新疏 2.44

2.44

恐人聞實智事外，謂有外證空，故云未始無事。言即事見真，《起信》云：「以一切法悉皆真故。」又聞權智世表，謂不化物，故云爾也。謂處世不染即是世表。

Fearing that upon hearing that real wisdom is outside phenomena people would say that there is realization of emptiness outside of being, it is therefore said that "it has never been without phenomena." This means that right within phenomena one sees the real. The Awakening of Faith says: "Because all phenomena are entirely real." Also, fearing that upon hearing that upāya-jñāna is beyond the world people would say that it does not transform beings, it is therefore stated thus. This means that dwelling in the world without defilement is itself being beyond the world.