瑜伽論記 17.396

17.396

基云：八相觀，即如本地第八末。亦如五十三末說：此中言相對者即對苦受言樂受，非樂受非是苦，此有三相對。如五十六說，相對勘之。

Ji says: The contemplation of the eight aspects is just as at the end of the eighth fascicle of the Maulī Bhūmiḥ. It is also as taught at the end of fascicle 53: here, 'relative' means speaking of pleasurable feeling in contrast to painful feeling, yet pleasurable feeling is not not-suffering; there are three kinds of relativity here. Compare this with what is taught in fascicle 56.