Bhagavatapurana 2.8.15

2.8.15

bhūpātālakakubvyoma grahanakṣatrabhūbhṛtām /
saritsamudradvīpānāṃ sambhavaścaitadokasām //

15. What is the origin of the earth, of the nether world, of the eight quarters, of the sky, of planets, of stars, of mountains, rivers, seas, and islands, and of those that inhabit them?