Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 8

Sanskrit:

परावरेषां भूतानामात्मा य: पुरुष: पर: ।स एवासीदिदं विश्वं कल्पान्तेऽन्यन्न किञ्चन ॥ ८ ॥

ITRANS:

parāvareṣāṁ bhūtānāmātmā yaḥ puruṣaḥ paraḥsa evāsīd idaṁ viśvaṁkalpānte ’nyan na kiñcana

Translation:

The transcendental Supreme Person, the Supersoul of all living entities, who are in different statuses of life, high and low, existed at the end of the millennium, when neither this manifested cosmos nor anything else but Him existed.

Purport:

Taking the proper position from which to describe the dynasty of Manu, Śukadeva Gosvāmī begins by saying that when the entire world is inundated, only the Supreme Personality of Godhead exists, and nothing else. Śukadeva Gosvāmī will now describe how the Lord creates other things, one after another.