Mbh 5.110.1b

Here is heard the loud chanting of the Vedas by Suvarnasiras, who is invincible and of immeasurable energy, and whose hair is eternally green. It is in this region that the daughter of Muni Harimedhas remained transfixed in the welkin in consequence of Surya’s injunction couched in the words--Stop, Stop. Here, O Galava, wind, and fire, and earth, and water, are all free, both day and night, from their painful sensations. It is from this region that the sun’s course begins to deviate from the straight path, and it is in this direction that all the luminous bodies (the constellations) enter the solar sphere. And having moved for twenty-eight nights with the sun, they come out of the sun’s course to move in accompaniment with the moon. It is in this region that the rivers which always feed the ocean have their sources. Here, in the abode of Varuna, are the waters of the three worlds. In this region is situate the abode of Anarta, the prince of snakes. And here is the unrivalled abode also of Vishnu, who is without beginning and without end. In this region is also situate the abode of the great Rishi Kasyapa, the son of Maricha. The western quarter is thus narrated to thee in course of telling thee of the different points. Tell me now, O Galava, towards which side, O best of regenerate persons, shall we go?”’”