Śrīmad-Bhāgavatam 3.11.35
SB 3.11.35
Open the full passageSanskrit
pūrvasyādau parārdhasya brāhmo nāma mahān abhūt kalpo yatrābhavad brahmā śabda-brahmeti yaṁ viduḥ
Translation
In the beginning of the first half of Brahmā's life, there was a millennium called Brāhma-kalpa, wherein Lord Brahmā appeared. The birth of the Vedas was simultaneous with Brahmā's birth.