成唯識論掌中樞要 2.86

2.86

Namely, if it were hypothetically granted that in the Hīnayāna, form and mind before and after have equal-and-immediate conditioning, then as in the third fascicle of the Mahāyānasaṃgraha, the Sautrāntikas within the Sthaviras hold that form and mind alternately serve as seeds from prior to posterior; now, refuting this, the final mind of the arhat would not be established. Wuxing says: "Therefore, form and mind arising sequentially before and after can only possibly have equal-and-immediate condition, because there is no cause-condition (hetu-pratyaya)."