成唯識論述記 2.573

2.573

述曰：由是理故，但應遣彼心外之境同兔角無，能緣彼心如幻事有，故別不同。非謂即心亦名實有，量云：執心所取真實唯識，體非實有；執所取故；如所執色等。執實唯識心等亦是法執；執實有法故；如執色心等。

The Commentary states: Due to this principle, one should only dispel the objects external to the mind as being non-existent like a rabbit's horns, while the mind capable of taking them as an object exists like an illusion, so they are distinct and not identical. It is not meant that the mind itself is termed really existent. The syllogism is: The real consciousness-only grasped by the grasping mind is not real in its essence; because it is an object grasped by attachment; like the grasped forms and so on. The mind and so on that grasp at a real consciousness-only are also attachment to dharmas; because they grasp at a really existent dharma; like the mind that grasps at forms and so on.