Mahabharata 3.110.13

3.110.13

mahāhradaṃ samāsādya kāśyapastapasi sthitaḥ |
dīrghakālaṃ pariśrānta ṛṣirdevarṣisaṃmataḥ || 13 ||

"Lomasa said, 'Hear how Rishyasringa, of dreaded name, was born as a son to Vibhandaka, who was a saint of the Brahmana caste, who had cultured his soul by means of religious austerities, whose seed never failed in causing generation, and who was learned and bright like the Lord of beings. And the father was highly honoured, and the son was possessed of a mighty spirit, and, though a boy, was respected by aged man. And that son of Kasyapa, Vibhandaka, having proceeded to a big lake, devoted himself to the practice of penances. And that same saint, comparable to a god, laboured for a long period. And once while he was washing his mouth in the waters, he beheld the celestial nymph Urvasi--whereupon came out his seminal fluid. And, O king! a hind at that time lapped it up along with the water that she was drinking, being athirst; and from this cause she became with child. That same hind had really been a daughter of the gods, and had been told of yore by the holy Brahma, the creator of the worlds, 'Thou shall be a hind; and when in that form, thou shall give birth to a saint; thou shalt then be freed.' As Destiny would have it, and as the word of the creator would not be untrue, in that same hind was born his (Vibhandaka's) son a mighty saint. And Rishyasringa, devoted to penances, always passed his days in the forest. O king! there was a horn on the head of that magnanimous saint and for this reason did he come to be known at the time by the name of Rishyasringa.