成唯識論演祕 2.158

2.158

Answer: There are two explanations. One says: Although upon reaching the Buddha stage they can also cognize atoms, in the causal stage this is not so, unlike wisdom and Dharma which, in both cause and fruition, can take atoms as their domain. The second says: Saying that the Buddha eye can cognize them takes only the portion whose nature is wisdom; although the fleshly and divine [eyes] reaching Buddhahood are called the Buddha eye, since their entity is not wisdom, they do not cognize atoms. The latter explanation is superior.