US-P12.013ab ।US-P12.013cd ॥
In plain words
Whoever knows that the Self's seeing never lapses, that the Self never acts, and who then lets go even of being a knower of Brahman — that one knows the Self. No one else does.
Close to the Sanskrit
He who knows the never-lapsing seeing of the Self, and likewise its non-agency, and who, likewise, having relinquished the state of being a knower of Brahman — he is a knower of the Self, and not the other.