Mbh 13.149.4a

"Even thus have I recited to thee, without any exception, the thousand excellent names of the high-souled Kesava whose glory should always be sung. That man who hears the names every day or who recites them every day, never meets with any evil either here or hereafter. If a Brahmana does this he succeeds in mastering the Vedanta; if a Kshatriya does it, he becomes always successful in battle. A Vaisya, by doing it, becomes possessed of affluence, while a Sudra earns great happiness. If one becomes desirous of earning the merit of righteousness, one succeeds in earning it (by hearing or reciting these names). If it is wealth that one desires, one succeeds in earning wealth (by acting in this way). So also the man who wishes for enjoyments of the senses succeeds in enjoying all kinds of pleasures, and the man desirous of offspring acquires offspring (by pursuing this course of conduct). That man who with devotion and perseverance and heart wholly turned towards him, recites these thousand names of Vasudeva every day, after having purified himself, succeeds in acquiring great fame, a position of eminence among his kinsmen, enduring prosperity, and lastly, that which is of the highest benefit to him (viz., emancipation itself). Such a man never meets with fear at any time, and acquires great prowess and energy. Disease never afflicts him; splendour of complexion, strength, beauty, and accomplishments become his. The sick become hale, the afflicted become freed from their afflictions; the affrighted become freed from fear, and he that is plunged in calamity becomes freed from calamity. The man who hymns the praises of that foremost of Beings by reciting His thousand names with devotion succeeds in quickly crossing all difficulties. That mortal who takes refuge in Vasudeva and who becomes devoted to Him, becomes freed of all sins and attains to eternal Brahma. They who are devoted to Vasudeva have never to encounter any evil.