瑜伽論記 13.53

13.53

述曰：末那惑障於人觀，二乘觀道除，人執識細，二乘非種智，所以不為說第七，即如見道，雖斷三惡趣果，第八細故不為說，末那識細故，彼非一切種智，亦不為說。

The commentary says: The defilements of the manas obstruct personal contemplation; in the path of contemplation of the two vehicles they are eliminated. The consciousness that grasps a person is subtle, and the two vehicles do not possess the knowledge of all aspects; this is why the seventh is not taught to them. Just as in the path of seeing, although the fruits of the three miserable realms are severed, the eighth is subtle and therefore not taught; because the manas consciousness is subtle and they do not have the knowledge of all aspects, it is likewise not taught.