妙法蓮華經玄義 2.202

2.202

《釋論》云：「不破聖人心中所得涅槃，為未得者執涅槃生戲論，如緣無生使，故破。」言無諦也。

The Mahāprajñāpāramitopadeśa says: "It is not to refute the nirvāṇa attained in the hearts of the noble ones, but because those who have not attained it cling to nirvāṇa and generate conceptual proliferations, just as clinging to non-arising gives rise to defilements; therefore it is refuted." This is the meaning of speaking of truthlessness.