Mbh 3.104.3

“The gods said, ‘This king of hills, Vindhya, giving way to wrath, is stopping the path of the Sun and the Moon, and also the course of the stars. O foremost of Brahmanas! O thou great in gifts! excepting thyself, there is none who can prevent him; therefore do thou make him desist.’ Hearing these words of the gods the Brahmana came to the mountain. And he with his wife, having arrived there, came near Vindhya and spake to him, saying, ‘O thou best of mountains! I wish to have a path given to me by thee, as, for some purpose, I shall have to go to the southern region. Until my return, do thou wait for me. And when I have returned, O king of mountains, thou mayst increase in bulk as much as thou pleasest.’ And, O slayer of foes! having made this compact with Vindhya up to the present day Varuna’s son doth not return from the southern region. Thus have I, asked by thee, narrated to thee why Vindhya doth not increase in bulk, by reason of the power of Agastya. Now, O king! hear how the Kalakeyas were killed by the gods, after they had obtained their prayer from Agastya.