Mbh 13.149.3a

"'Bhishma said, "One should always, with alacrity and throwing away all languor, hymn the praises of that Lord of the universe, that god of gods (viz., Vasudeva), who is Infinite and the foremost of all Beings, by uttering His thousand names. By always worshipping with reverence and devotion that immutable Being, by meditating on him, by hymning His praises and bowing the head unto Him, and by performing sacrifices unto Him, indeed by always praising Vishnu, who is without beginning and without end or destruction, who is the Supreme Lord of all the worlds, and who is the Master and Controller of the universe, one can succeed in transcending all sorrow. Verily, He is devoted to the Brahmanas, conversant with all duties and practices, the enhancer of the fame and achievement of all persons, the master of all the worlds, exceedingly wonderful, and the prime cause of the origin of all creatures. Even this, in my judgment, is the foremost religion of all religions, viz., one should always worship and hymn the praises of the lotus-eyed Vasudeva with devotion. He is the highest Energy. He is the highest Penance. He is the highest Brahma. He is the highest refuge. He is the most holy of all holies, the most auspicious of all auspicious objects. He is the god of all the gods and He is the immutable father of all creatures. On the advent of the primal Yuga, all creatures spring from Him. On the expiration, again of a Yuga, all things disappear in Him.[590] Hear, O king, the thousand names, possessed of great efficacy in destroying sins, of that foremost one in all the worlds that Master of the universe, viz., Vishnu. All those names derived from His attributes, secret and well-known, of the high-souled Vasudeva which were sung by Rishis, I shall recite to thee for the good of all. They are, Om!