Mbh 3.82.5f

Proceeding then, with subdued soul and leading a Brahmacharya mode of life, to Manimat, and residing there for one night, one acquireth, O king, the merit of the Agnishtoma sacrifice. One should then go, O king, to Devika celebrated over the whole world. It was there, O bull of Bharata race, that, as heard by us, the Brahmanas first sprang into existence. There also is the region of the holder of the trident--a region that is celebrated over the world. Having bathed in Devika and worshipped Maheswara by offering him, to the best of one’s might, rice boiled in milk and butter, a man obtaineth, O bull of the Bharata race, the merit of a sacrifice that is capable of filling every desire. There also is another tirtha of Rudra called Kamakhya, which is much resorted to by the gods. Bathing there, a man speedily obtaineth success. By touching also the water of Yajana. Brahmavaluka, and Pushpamva, one becometh free from sorrow in after life. The learned have said that the sacred tirtha of Devika, the resort of the gods and the Rishis, is five Yojanas in length and half a Yojana in breadth. One should then, in due order, proceed, O king, to Dirghasatra. There the gods with Brahma at their head, the Siddhas, and the greatest Rishis, with regulated vows and the recitation and acceptance of the preliminary pledge, perform the long-extending sacrifice. O king, by going only to Dirghasatra, O represser of foes, one obtaineth merit that is superior, O Bharata, to that of the Rajasuya or the horse-sacrifice. One should next proceed with subdued senses and regulated diet to Vinasana, where Saraswati disappearing on the breast of Meru, re-appeareth at Chamasa, Shivodbheda and Nagadbheda. Bathing in Chamasadbheda, one obtaineth the merit of the Agnishtoma sacrifice. Bathing in Shivodbheda, one acquireth the merit of the gift of a thousand kine. And bathing in Nagodbheda, one obtaineth the region of the Nagas.