大方廣圓覺修多羅了義經略疏 2.840

2.840

覺前三相即覺他也，證悟等盡，徹於真源，無別能覺，故上云心照。

Being aware of the previous three marks is awakening to others. When realization, awakening, and the like are exhausted and one penetrates to the true source, there is no other subject that can be aware; hence it was said above that the 'mind illuminates'.