Mbh 1.22.3

“Now the two co-wives had laid the wager. And having laid the wager, O best of Brahmanas, the two sisters Kadru and Vinata, the daughters of Daksha, proceeded in great delight along the sky to see the other side of the Ocean. And on their way they saw the Ocean, that receptacle of waters, incapable of being easily disturbed, mightily agitated all of a sudden by the wind, and roaring tremendously; abounding with fishes capable of swallowing the whale and full of makaras; containing also creatures of diverse forms counted by thousands; frightful from the presence of horrible monsters, inaccessible, deep, and terrible, the mine of all kinds of gems, the home of Varuna (the water-god), the wonderful habitations of the Nagas, the lord of rivers, the abode of the subterranean fire; the residence of the Asuras and of many dreadful creatures; the reservoir of water, not subject to decay, aromatic, and wonderful, the great source of the amrita of the celestials; immeasurable and inconceivable, containing waters that are holy, filled to the brim by many thousands of great rivers, dancing as it were in waves. Such was the Ocean, full of rolling waves, vast as the expanse of the sky, deep, of body lighted with the flames of subterranean fire, and roaring, which the sisters quickly passed over.’”