成唯識論述記 9.269

9.269

述曰：一、無相無我，我相體無故；二、異相無我，與我相異故；三、自相無我，義同空釋。

The Commentary states: First, selflessness of non-existent marks, because the entity of the mark of self is non-existent; second, selflessness of different marks, because it is different from the mark of self; third, selflessness of intrinsic marks, whose explanation is the same as that of emptiness.