Mahabharata Adi Parva Chapter 63:2

Mahabharata Adi Parva Chapter 63:2 After erecting the pole they decked it with golden cloth and scents and garlands and various ornaments. And the god Vasava is worshipped in due form with such garlands and ornaments. And the god, for the gratification of the illustrious Vasu, assuming the form of a swan, came himself to accept the worship thus offered. And the god, beholding the auspicious worship thus made by Vasu, that first of monarchs, was delighted, and said unto him, 'Those men, and kings also, who will worship me and joyously observe this festival of mine like the king of Chedi, shall have glory and victory for their countries and kingdom. Their cities also shall expand and be ever in joy.' "King Vasu was thus blessed by the gratified Maghavat, the high-souled chief of the gods. Indeed, those men who cause this festivity of Sakra to be observed with gifts of land, of gems and precious stones, become the respected of the world. And king Vasu, the lord of Chedis bestowing boons and performing great sacrifices and observing the festivity of Sakra, was much respected by Indra. And from Chedi he ruled the whole world virtuously. And for the gratification of Indra, Vasu, the lord of the Chedis, observed the festivity of Indra. "And Vasu had five sons of great energy and immeasurable prowess. And the emperor installed his sons as governors of various provinces. "And his son Vrihadratha was installed in Magadha and was known by the name of Maharatha. Another son of his was Pratyagraha; and another, Kusamva, who was also called Manivahana. And the two others were Mavella, and Yadu of great prowess and invincible in battle. "These, O monarch, were the sons of that royal sage of mighty energy. And the five sons of Vasu planted kingdoms and towns after their own names and founded separate dynasties that lasted for long ages. "And when king Vasu took his seat in that crystal car, with the gift of Indra, and coursed through the sky, he was approached by Gandharvas and Apsaras (the celestial singers and dancers). And as he coursed through the upper regions, he was called Uparichara. And by his capital flowed a river called Suktimati. And that river was once attacked by a life-endued mountain called Kolahala maddened by lust. And Vasu, beholding the foul attempt, struck the mountain with his foot. And by the indentation caused by Vasu's stamp, the river came out (of the embraces of Kolahala). But the mountain begat on the river two children that were twins. And the river, grateful to Vasu for his having set her free from Kolahala's embraces, gave them both to Vasu. And the son was made the generalissimo to his forces by Vasu, that best of royal sages and giver of wealth and punisher of enemies. And the daughter called Girika, was wedded by Vasu.