Rāmāyaṇacampū 1.54

1.54

Then Kuśanābha, learning of the affair and considering forbearance alone to be the remedy, gave them in marriage to King Brahmadatta, the son of Cūlī and born of Somadā, and they were restored to their natural form.
Desiring a son once more, Kuśanābha, through the grace of his father, begot my revered father of unfathomable strength, named Gādhi.”
Thus the son of Daśaratha, having passed the watches of the night effortlessly listening to the story of Kauśika’s birth, performed his morning rites at the river named Śoṇa, whose face had been reddened in the eastern quarter with the radiant glow of dawn as lovely as a cluster of bandhūka blossoms; and he set out along the path approaching the Gaṅgā in the company of the sage, who had finished his daily vows.
Having pure water [and milk] from birth, giving joy to the bull [and dharma], / beloved of the sacred scriptures, he reached that river as one would a cow. // 54