The works of Ādi Śaṅkarācārya

Sanatsujātīyam

p. 270

p. 270

साक्षात् सर्वज्ञः, न अनात्ममात्रदर्शी ॥

In plain words

He knows everything, and knows it directly — not someone whose seeing stops at the not-self.

Close to the Sanskrit

Directly all-knowing; not one who sees the not-self only.