Mbh 3.82.5b

Having arrived then at the Narmada, that river celebrated over the three worlds, and given oblations of water to the Pitris and the gods, one acquireth the fruit of the horse-sacrifice. He that goeth into the Southern ocean, practising the Brahmacharya mode of life, and with senses subdued, acquireth the fruit of the Agnishtoma sacrifice and ascendeth to heaven. Having arrived at Charmanwati, with regulated diet and senses subdued, one acquireth, at the command of Rantideva, the merit of the Agnishtoma sacrifice. One must then go, O virtuous chief of warriors, to Arvuda, the son of Himavat, where there was a hole through the earth in days of yore. There is the asylum of Vasistha, celebrated over the three worlds. Having resided for one night, one obtaineth the merit of the gift of a thousand kine. He that, leading a Brahmacharya mode of life batheth in the tirtha called Pinga, obtaineth, O tiger among kings, the merit of the gift of a hundred Kapila kine. One must next go, O king, to that excellent tirtha called Prabhasa. There Hutasana is always present in his own person. He, the friend of Pavana, O hero, is the mouth of all the gods. The man that with subdued and sanctified soul batheth in that tirtha, obtaineth merit greater than that of the Agnishtoma or Atiratra sacrifices. Proceeding next to the spot where the Saraswati mingleth with the sea, one obtaineth the fruit of the gift of a thousand kine and heaven also besides, O bull of the Bharata race, blazing forth for all time like Agni himself. He that with subdued soul batheth in the tirtha of the king of waters, and giveth oblations of water unto the Pitris and the gods, living there for three nights, blazeth forth like the Moon, and obtaineth also the fruit of the horse-sacrifice. One should next proceed, O best of the Bharata, unto the tirtha known by the name of Varadana, where (the Rishi) Durvasa had given a boon unto Vishnu.