O King Pariksit, at the end of the past millennium, at the end of Brahma's day, because Lord Brahma sleeps during the night, annihilation took place, and the three worlds were covered by the water of the ocean

Expressions researched:
"O King Pariksit, at the end of the past millennium, at the end of Brahma's day, because Lord Brahma sleeps during the night, annihilation took place, and the three worlds were covered by the water of the ocean"

Srimad-Bhagavatam

SB Canto 8

O King Pariksit, at the end of the past millennium, at the end of Brahma's day, because Lord Brahma sleeps during the night, annihilation took place, and the three worlds were covered by the water of the ocean.

SB 8.24.7, Translation

O King Pariksit, at the end of the past millennium, at the end of Brahma's day, because Lord Brahma sleeps during the night, annihilation took place, and the three worlds were covered by the water of the ocean.