瑜伽論記 15.176

15.176

第四約四諦分別二諦，此中義意，其滅道二諦乃至勝義苦集二諦。由彼共相三受等皆是行苦一味苦故是勝義諦。若差別說，苦受是餘集等非，即由自性差別故名世俗諦。

Fourth, differentiating the two truths in terms of the four truths: the intended meaning here is that the two truths of cessation and the path, and even the ultimate truth of the two truths of suffering and origin—because through their common characteristic, the three feelings and so forth are all of one single taste of suffering as the suffering of conditioned existence—are therefore the ultimate truth. If spoken of differentially, painful feeling is [the suffering of suffering], while the others, origin and so on, are not; thus, by virtue of the differentiation of intrinsic nature, they are called conventional truth.