The works of Ādi Śaṅkarācārya

Sanatsujātīyam

p. 209

p. 209

अहङ्कारस्य विजये ह्यात्मा सिद्धो भविष्यति ॥

In plain words

Conquer the ego, and the ātman is accomplished — nothing left to reach for.

Close to the Sanskrit

For, upon the conquest of the ego, the Self will indeed become accomplished.