Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 55

Sanskrit:

एवं सकृद् ददर्शाज: परब्रह्मात्मनोऽखिलान् ।यस्य भासा सर्वमिदं विभाति सचराचरम् ॥ ५५ ॥

ITRANS:

evaṁ sakṛd dadarśājaḥpara-brahmātmano ’khilānyasya bhāsā sarvam idaṁvibhāti sa-carācaram

Translation:

Thus Lord Brahmā saw the Supreme Brahman, by whose energy this entire universe, with its moving and nonmoving living beings, is manifested. He also saw at the same time all the calves and boys as the Lord’s expansions.

Purport:

By this incident, Lord Brahmā was able to see how Kṛṣṇa maintains the entire universe in different ways. It is because Kṛṣṇa manifests everything that everything is visible.