Mbh 3.83.3b

O son of Kuru race, there is no tirtha which is superior to Prithudaka. Without doubt, that tirtha is purifying, holy and sin-destroying. O best of men, it hath been said by learned persons that men, however sinful, by bathing in Prithudaka, go to heaven. O best of the Bharatas, there in that tirtha is another called Madhusrava. Bathing there, O king, one obtaineth the merit of giving away a thousand kine. One should then proceed, O king, to that celebrated and sacred tirtha where the Saraswati uniteth with the Aruna. One that batheth there, having fasted for three nights, is cleansed of even the sin of slaying a Brahmana, and obtaineth also merit that is superior to that of either the Agnishtoma or Atiratra sacrifice, and rescueth his race to the seventh generation up and down. There in that tirtha is another, O perpetuator of the Kuru race, that is called Ardhakila. From compassion for the Brahmanas, that tirtha was made by Darbhi in days of old. Without doubt, by vows, by investiture of the sacred, by fasts, by rites and by Mantras, one becometh a Brahmana. O bull among men, it hath been seen, however, by learned persons of old that even one destitute of rites and Mantras, by only bathing in that tirtha becometh learned and endued with the merit of vows. Darbhi had also brought hither the four oceans. O best of men, one that batheth here, never meeteth with distress hereafter and obtaineth also the merit of giving away four thousand kine. One should next repair, O virtuous one, to the tirtha called Satasahasraka. Near to this is another called Sahasraka. Both are celebrated, and one that batheth in them, obtaineth the merit of giving away a thousand kine. Fasts and gifts there multiply a thousandfold. One should next proceed, O king, to the excellent tirtha called Renuka. One should bathe there and worship the Pitris and the gods. By this, cleansed from every sin, he obtaineth the merit of the Agnishtoma sacrifice.