Mbh 3.186.3

And there was water everywhere and the waters covered the heaven and the firmament also. And, O bull of Bharata’s race, when the world was thus flooded, none but Manu, the seven Rishis and the fish could be seen. And, O king, the fish diligently dragged the boat through the flood for many a long year and then, O descendant of Kuru and ornament of Bharata’s race, it towed the vessel towards the highest peak of the Himavat. And, O Bharata, the fish then told those on the vessel to tie it to the peak of the Himavat. And hearing the words of the fish they immediately tied the boat on that peak of the mountain and, O son of Kunti and ornament of Bharata’s race, know that that high peak of the Himavat is still called by the name of Naubandhana (the harbour). Then the fish addressing the associated Rishis told them these words, ‘I am Brahma, the Lord of all creatures; there is none greater than myself. Assuming the shape of a fish, I have saved you from this cataclysm. Manu will create (again) all beings--gods, Asuras and men, all those divisions of creation which have the power of locomotion and which have it not. By practicing severe austerities he will acquire this power, and with my blessing, illusion will have no power over him.’