大乘起信論義記 3.167

3.167

釋成中，以熏真滅妄，淨用無盡故也。文處可見。上來釋生滅門中能顯義之法竟。

In explaining and establishing: because perfuming truth extinguishes delusion, pure function is inexhaustible. This can be seen in the text. The explanation above of the dharmas capable of revealing the meaning in the gate of arising and ceasing is concluded.