Mahabharata Shalya Parva Chapter 37:3

Mahabharata Shalya Parva (Gada Yuddha Parva) Chapter 37:3 In consequence of the number of the Rishis, O king, the tirthas on the southern banks of the Sarasvati all looked like towns and cities. Those foremost of Brahmanas, O tiger among men, in consequence of their eagerness for enjoying the merits of tirthas, took up their abodes on the bank of the river up to the site of Samantapanchaka. The whole region seemed to resound with the loud Vedic recitations of those Rishis of cleansed souls, all employed in pouring libations on sacrificial fires. That foremost of rivers looked exceedingly beautiful with those blazing homa fires all around, over which those high-souled ascetics poured libations of clarified butter. Valkhilyas and Asmakuttas, Dantolakhalinas, Samprakshanas and other ascetics, as also those that subsisted on air, and those that lived on water, and those that lived on dry leaves of trees, and diverse others that were observant of diverse kinds of vows, and those that forswore beds for the bare and hard earth, all came to that spot in the vicinity of the Sarasvati. And they made that foremost of rivers exceedingly beautiful, like the celestials beautifying (with their presence) the heavenly stream called Mandakini. Hundreds upon hundreds of Rishis, all given to the observance of sacrifices, came thither. Those practisers of high vows, however, failed to find sufficient room on the banks of the Sarasvati. Measuring small plots of land with their sacred threads, they performed their Agnihotras and diverse other rites. The river Sarasvati beheld, O monarch, that large body of Rishis penetrated with despair and plunged into anxiety for want of a broad tirtha wherein to perform their rites. For their sake, that foremost of streams came there, having made many abodes for herself in that spot, through kindness for those Rishis of sacred penances, O Janamejaya! Having thus, O monarch, turned her course for their sake, the Sarasvati, that foremost of rivers, once more flowed in a westerly direction, as if she said, 'I must go hence, having prevented the arrival of these Rishis from becoming futile!' This wonderful feat, O king, was accomplished there by that great river. Even thus those receptacles of water, O king, were formed in Naimisha. There, at Kurukshetra, O foremost of Kuru's care, do thou perform grand sacrifices and rites! As he beheld those many receptacles of water and seeing that foremost of rivers turn her course, wonder filled the heart of the high-souled Rama. Bathing in those tirthas duly and giving away wealth and diverse articles of enjoyment unto the Brahmanas, that delighter of Yadu's race also gave away diverse kinds of food and diverse desirable articles unto them. Worshipped by those regenerate ones, Vala, O king, then set out from that foremost of all tirthas on the Sarasvati (Sapta-Saraswat). Numerous feathery creatures have their home there. And it abounded with Vadari, Inguda, Ksamarya, Plaksha, Aswattha, Vibhitaka, Kakkola, Palasa, Karira, Pilu, and diverse other kinds of trees that grow on the banks of the Sarasvati. And it was adorned with forest of Karushakas, Vilwas, and Amratakas, and Atimuktas and Kashandas and Parijatas. Agreeable to the sight and most charming, it abounded with forests of plantains. And it was resorted to by diverse tribes of ascetics, some living on air, some on water, some on fruit, some on leaves, some on raw grain which they husked with the aid only of stones, and some that were called Vaneyas. And it resounded with the chanting of the Vedas, and teemed with diverse kinds of animals. And it was the favourite abode of men without malice and devoted to righteousness. Valadeva, having the plough for his weapon, arrived at that tirtha called Sapta-Saraswat, where the great ascetic Mankanaka had performed his penances and became crowned with success."