成唯識論述記 9.203

9.203

述曰：因二空門所顯如性，七十七說：即我法性。我法性言：我法之性，非即我法，我法無故，《顯揚》、《中邊》亦同於此，以下同處更不引之，下准應知。舊《中邊》名相真實。

The Commentary states: The nature of tathatā revealed through the gateway of the two emptinesses. Fascicle 77 says: it is the nature of self and dharmas. The expression "nature of self and dharmas" means the nature of self and dharmas, not that it is identical with self and dharmas, for self and dharmas do not exist. The Prakaraṇāryavācā and the Madhyāntavibhāga are also identical to this. Below, identical passages will not be cited further, and should be understood accordingly. The old Madhyāntavibhāga named it "reality of marks".