成唯識論演祕 1.512

1.512

彼二論中明十六種大外道論，所緣皆是自心相分。若有一我體是相分，我體可得名為所緣見緣於我，既無其我體是相分，故知我體不是所緣，見亦不緣我為其境。

In those two treatises, when explaining the treatises of the sixteen great non-Buddhist schools, their cognized objects are all the objective aspects of their own minds. If there were a single self whose essence was an objective aspect, the essence of the self could be termed a cognized object and the subjective vision would cognize the self. Since there is no essence of the self that is an objective aspect, we know that the essence of the self is not a cognized object, nor does the subjective vision cognize the self as its object.