Bhagavad Gita · 9.4

मया ततमिदं सर्वं जगदव्यक्तमूर्तिना।मत्स्थानि सर्वभूतानि न चाहं तेष्ववस्थितः॥

mayā tatam idaṁ sarvaṁ jagad avyakta-mūrtinā mat-sthāni sarva-bhūtāni na chāhaṁ teṣhv avasthitaḥ

This entire universe is pervaded by Me in My unmanifest form. All beings exist in Me, yet I do not dwell in them.

— Bhagavad Gita 9.4

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)