Mbh 3.187.4b

Thus addressed by that boy, a sense of total disregard possessed me in respect both of my long life and state of manhood. Then that boy suddenly opened his mouth, and as fate would have it, I entered his mouth deprived of the power of motion. But O king, having suddenly entered into the stomach of that boy, I behold there the whole earth teeming with cities and kingdoms. And, O best of men, while wandering through the stomach of that illustrious one, I behold the Ganga, the Satudru, the Sita, the Yamuna, and the Kausiki; the Charmanwati, the Vetravati; the Chandrabhaga, the Saraswati, the Sindhu, the Vipasa, and the Godavari; the Vaswokasara, the Nalini and the Narmada; the Tamra, and the Venna also of delightful current and sacred waters; the Suvenna, the Krishna-venna, the Irama, and the Mahanadi; the Vitasti, O great king, and that large river, the Cavery; the one also, O tiger among men, the Visalya, and the Kimpuna also. I beheld all these and many other rivers that are on the earth! And, O slayer of foes, I also beheld there the ocean inhabited by alligators and sharks, that mine of gems, that excellent abode of waters. And I beheld there the firmament also, decked with the Sun and the Moon, blazing with effulgence, and possessed of lustre of fire of the Sun. And I beheld there, O king, the earth also, graced with woods and forests. And, O monarch, I beheld there many Brahmanas also, engaged in various sacrifices; and the Kshatriyas engaged in doing good to all the orders; and the Vaisyas employed in pursuits in agriculture; and the Sudras devoted to the service of the regenerate classes. And, O king, while wandering through the stomach of that high-souled one, I also beheld the Himavat and the mountains of Hemakuta. And I also saw Nishada, and the mountains of Sweta abounding in silver. And, O king, I saw there the mountain Gandhamadana, and, O tiger among men, also Mandara and the huge mountains of Nila.