瑜伽論記 19.482

19.482

別分別中，言圓成實性，謂真如者，此遍舉不變異義出圓成體。智所行、境界、所緣者，此之三句義無差別，但欲鄭重舉彼能行無分別智，顯彼所行真如為圓成實，以彼真如甚深難信，故舉能行顯所行也。

In the specific distinguishing, the statement that the pariniṣpanna nature refers to tathatā comprehensively cites the meaning of unalterability to reveal the substance of pariniṣpanna. The three phrases 'scope of wisdom', 'sphere', and 'object of cognition' have no difference in meaning; they merely emphatically cite that non-discriminating wisdom which is capable of traversing, in order to reveal that the tathatā it traverses is pariniṣpanna. Because that tathatā is extremely profound and difficult to have faith in, that which is capable of traversing is cited to reveal that which is traversed.