Mahabharata Anushasna Parva Chapter 25:3

Mahabharata Anushasna Parva (Dana Dharma Parva) Chapter 25:3 Bathing in the delightful tirtha that goes by the name of Gandhataraka and residing there for one month, abstaining all the while from food and drink, one acquires the power of disappearing at pleasure and, then one and twenty days, of ascending to heaven. He that bathes in the lake known by the name of Matanga is sure to attain to success in one night. He that bathes in Analamva or in eternal Andhaka, or in Naimisha, or the tirtha called Swarga, and offers oblations of water to the Pitris, subduing his senses the while, acquires the merit of a human sacrifice. Bathing in Ganga hrada and the tirtha known by the name of Utpalavana and daily offering oblations of water there for a full month to the Pitris, one acquires the merit of a Horse-sacrifice. Bathing in the confluence of the Ganga and the Yamuna as also at the tirtha in the Kalanjara mountains and offering every day oblations of water to the Pitris for a full month, one acquires the merit that attaches to ten Horse-sacrifices. Bathing in the Shashthi lake one acquires merit much greater than what is attached to the gift of food. Ten thousand tirthas and thirty millions of other tirthas come to Prayaga (the confluence of Ganga and Yamuna), O chief of Bharata's race in the month of Magha. He who bathes in Prayaga, with a restrained soul and observing rigid vows the while, in the month of Magha, becomes cleansed of all his sins, O chief of Bharata's race, and attains to heaven. Bathing in the tirtha that is sacred to the Maruts, as also in that which is situate in the retreat of the Pitris, and also in that which is known by the name of Vaivaswata, one becomes cleansed of all one's sins and becomes as pure and sanctified as a tirtha. Repairing to Brahmasaras as also to the Bhagirathi and bathing there and offering oblations to the Pitris every day for a full month, abstaining from food all the while, one is sure to attain to the region of Soma. Bathing in Utpataka and then in Ashtavakra and offering oblations of water to the Pitris every day for twelve days in succession, abstaining the while from food, one acquires the merits of a Horse-sacrifice. Bathing in Asmaprishtha and Niravinda mountains and Kraunchapadi,—all three in Gaya—one becomes cleansed of the sin of Brahmanicide. A bath in the first place cleanses one of a single Brahmanicide; a bath in the second cleanses one of two offences of that character; and a bath in the third cleanses one of three such offences. Bathing in Kalavinga, one acquires a large quantity of water (for use in the next world). A man, by bathing in the city of Agni, acquires such merit as entitles him to live during his next birth in the city of Agni's daughter. Bathing in Visala in Karavirapura and offering oblations of water unto one's Pitris, and performing one's ablutions in Devahrada too, one becomes identified with Brahma and shines in glory as such. Bathing in Punaravarta-nanda as also Mahananda, a man of restrained senses and universal compassion repairs to the celestial gardens called Nandana of Indra and is waited upon there by Apsaras of diverse tribes.