Mahabharata 3.88.9

3.88.9

sarasvatī nadī sadbhiḥ satataṃ pārtha pūjitā |
vālakhilyairmahārāja yatreṣṭamṛṣibhiḥ purā || 9 ||

In that region also, O son of Pritha, is the river Saraswati, which is ever worshipped by the god, where, in days of yore, the Valikhilyas, O great king, performed sacrifices. In that region also, O Yudhishthira, is the well-known river Drisadwati, which is productive of great merit. Then, O chief of men, are Nyagrodhakhya, and Panchalya, and Punyaka and Dalbhyaghosha, and Dalbhya, which are, O son of Kunti, the sacred asylum in the world of illustrious Anandayasas of excellent vows and great energy, and which are celebrated over the three worlds. Here also, O lord of men, the illustrious Etavarna and Avavarana versed in the Vedas, learned in Vedic lore, and proficient in the knowledge of Vedic rites, performed meritorious sacrifices, O chief of the Bharata race! There also is Visakhayupa to which, in days of yore, came the gods with Varuna and Indra, and practised ascetic austerities. And therefore is that spot so eminently sacred. Here also is Palasaka, where the great and illustrious and highly blessed Rishi Jamadagni performed sacrifices. There all the principal rivers in their embodied forms taking their respective waters stood surrounding that best of sages.