首楞嚴義疏注經 2.148

2.148

The words 'nature of the mind' apply to both the true and the false. What Ānanda grasps is the false; what the Tathāgata points out is the true. Now, using the arising and ceasing he grasps to doubt the wondrous brightness that was pointed out, he therefore says: 'then why is that spoken of by the Tathāgata without return?' 'Return' is equivalent to 'cessation.'