The Great Epic of the Bhārata dynasty 1.2.119

1.2.119

jantūpākhyānamatraiva yatra putreṇa somakaḥ |
putrārthamayajadrājā lebhe putraśataṃ ca saḥ || 119 ||

then the story of Agastya in which the Rishi ate up the Asura Vatapi, and his connubial connection with Lopamudra from the desire of offspring. Then the story of Rishyasringa who adopted Brahmacharya mode of life from his very boyhood; then the history of Rama of great prowess, the son of Jamadagni, in which has been narrated the death of Kartavirya and the Haihayas; then the meeting between the Pandavas and the Vrishnis in the sacred spot called Prabhasa; then the story of Su-kanya in which Chyavana, the son of Bhrigu, made the twins, Aswinis, drink, at the sacrifice of king Saryati, the Soma juice (from which they had been excluded by the other gods), and in which besides is shown how Chyavana himself acquired perpetual youth (as a boon from the grateful Aswinis). Then hath been described the history of king Mandhata; then the history of prince Jantu; and how king Somaka by offering up his only son (Jantu) in sacrifice obtained a hundred others; then the excellent history of the hawk and the pigeon; then the examination of king Sivi by Indra, Agni, and Dharma; then the story of Ashtavakra, in which occurs the disputation, at the sacrifice of Janaka, between that Rishi and the first of logicians, Vandi, the son of Varuna; the defeat of Vandi by the great Ashtavakra, and the release by the Rishi of his father from the depths of the ocean.