大般涅槃經義記 2.48

2.48

第二知偽非真喻中，得旨捨詮故言持出，悟解苦等非是實理名知非真。

In the second analogy of knowing the false is not genuine: grasping the purport and relinquishing the exposition is why it says "brought it out"; awakening to and understanding that suffering and so forth are not the real principle is called knowing it is not genuine.