The works of Ādi Śaṅkarācārya

Viṣṇusahasranāmastotram

Verse 218

सर्वभूतस्थितं यो मां भजत्येकत्वमास्थितः ।सर्वथा वर्तमानोऽपि स योगी मयि वर्तते ॥

In plain words

Whoever stands firm in the oneness and worships Me as I stand in every being — that yogī lives in Me, whatever he is doing.

Close to the Sanskrit

He who, established in oneness, worships Me as situated in all beings — that yogī, even though carrying on in every way, abides in Me.