Vishnupurana 4.3.18

4.3.18

tato bāhur yo 'sau haihayatālajaṅghādibhir avajito 'ntarvatnyā mahiṣyā saha vanaṃ viveśa ||

The son of Triśanku was Hariśchandra; his son was Rohitáśwa; his son was Harita; his son was Chunchu, who had two sons named Vijaya and Sudeva. Ruruka was the son of Vijaya, and his own son was Vrika, whose son was Báhu (or Báthuka). This prince was vanquished by the tribes of Haihayas and Tálajanghas, anti his country was overrun by them; in consequence of which he fled into the forests with his wives. One of these was pregnant, and being an object of jealousy to a rival queen, the latter gave her poison to prevent her delivery. The poison had the effect of confining the child in the womb for seven years. Báhu, having waxed old, died in the neighbourhood of the residence of the Muni Aurva. His queen having constructed his pile, ascended it with the determination of accompanying him in death; but the sage Aurva, who knew all things, past, present, and to come, issued forth from his hermitage, and forbade her, saying, "Hold! hold! this is unrighteous; a valiant prince, the monarch of many realms, the offerer of many sacrifices, the destroyer of his foes, a universal emperor, is in thy womb; think not of committing so desperate an act!" Accordingly, in obedience to his injunctions, she relinquished her intention. The sage then conducted, her to his abode, and after some time a very splendid boy was there born. Along with him the poison that had been given to his mother was expelled; and Aurva, after performing the ceremonies required at birth, gave him on that account the name of Sagara (from Sa, 'with,' and Gara, 'poison'). The same holy sage celebrated his investure with the cord of his class, instructed him fully in the Vedas, and taught him the use of arms, especially those of fire, called after Bhárgava.