瑜伽論記 4.318

4.318

四、依顯揚第二說三門，如前五十五說：然道四通三行，彼云緣智空道作道如行出行，亦是空行緣智，無相道作道如行出行，此亦是無相緣智，無願道作道如行出行，此亦是無願行，此意說言緣空道作空行等，是即空無相無願行，故道四行理通三門。

Fourth, based on the second fascicle of the Prakaraṇāryavācā, the three gates are explained as in the fifty-fifth fascicle above; however, the four of the path extend to the three aspects. It states: 'Taking the knowledge of the empty path as proceeding in the aspects of path, method, achievement, and deliverance is also an aspect of emptiness. Taking the knowledge of the signless path as proceeding in the aspects of path, method, achievement, and deliverance is also signless. Taking the knowledge of the wishless path as proceeding in the aspects of path, method, achievement, and deliverance is also an aspect of the wishless.' This intended meaning says that taking the empty path as an object and forming the aspect of emptiness and so forth are precisely the aspects of emptiness, signlessness, and wishlessness; therefore the four aspects of the path logically extend to all three gates.