成唯識論了義燈 4.44

4.44

又解五趣亦別。以定異因遍諸法故，雖然起雜。問：惑、業、生三雖同一界，五趣應別。不爾，豈可是人趣中，不善業於他趣受。若云非定屬，亦應報無屬。若許報無屬，應無五趣別，如業煩惱故。若言報有屬，惑、業亦應然，道理稍難智者思擇，以惑、業二隨報定勝，順定異因故。

Another explanation holds that the five destinies are also distinct, because the cause of determining distinctiveness (pratiniyamahetu) pervades all phenomena, even though their arising is confused. Question: Although affliction, karma, and rebirth belong to the same realm, they should be distinct across the five destinies. If not, how could unwholesome karma within the human destiny be experienced in another destiny? If one says there is no fixed attribution, retribution should also have no fixed attribution. If one allows that retribution has no fixed attribution, there would be no distinction among the five destinies, just like karma and afflictions. If one says retribution has fixed attribution, affliction and karma should also be so. This principle is somewhat difficult, and the wise should contemplate it: because affliction and karma definitively excel in following retribution, they accord with the cause of determining distinctiveness.