成唯識論了義燈 4.34

4.34

《論》：又阿羅漢或異生心等者。問：彼計識類，亙通三世，而性不易。即難：令凡聖染淨，應互相熏。第八一類，三世不易，應同彼過。答：不例，彼立識類依識而成，即彼識攝，無別法收，故有此過。大乘八識，體性各別。非一識類，故不成過。

The treatise says: "Furthermore, the mind of an arhat or a pṛthagjana..." Objection: They posit that the class of consciousness extends throughout the three times while its nature remains unchanged. Then one objects that ordinary beings and noble ones, defiled and pure, would perfuse one another. Since the eighth [consciousness] is uniform and unchanging across the three times, it should incur the same fault. Answer: They are not comparable. They establish that the class of consciousness is formed relying on consciousness, and thus is subsumed by that consciousness with no other phenomenon including it; hence they incur this fault. In the Mahāyāna, the eight consciousnesses have distinct individual essences. They are not a single class of consciousness; hence there is no fault.