The works of Ādi Śaṅkarācārya

Viṣṇusahasranāmastotram

Verse 209

सकलमिदमहं च वासुदेवः परमपुमान्परमेश्वरः स एकः ।इति मतिरचला भवत्यनन्ते हृदयगते व्रज तान्विहाय दूरात् ॥

In plain words

All of this, and I along with it, is Vāsudeva — the supreme Person, the supreme Lord; he is the one and only. When that conviction stops wavering, and the Endless One has taken his seat in the heart: go. Leave them alone, and go far away.

Close to the Sanskrit

All this, and I too, are Vāsudeva; the supreme Person, the supreme Lord — he is the One. Thus, when the conviction becomes unshakable, the Endless One having entered the heart — go, leaving them, far away.