Mbh 13.126.10

"'"The kine said, 'That man becomes cleansed of all his sins who adores a cow with these Mantras, viz., 'O Vahula, O Samanga, O thou that art fearless everywhere, O thou that art forgiving and full of auspiciousness, O friend, O source of all plenty, in the region of Brahman, in days of yore, thou wert present with thy calf in the sacrifice of Indra, the wielder of the thunderbolt. Thou tookest thy station in the firmament and in the path of Agni. The deities with Narada among them adored thee on that occasion by calling thee Sarvamsaha. Such man attains to the region of Purandara. He acquires, besides, the merits that attach to kine, and the splendour of Chandramas also. Such a man becomes freed from every sin, every fear, every grief. At the end, he obtains residence in the happy region of the Thousand-eyed Indra!'"