Mahabharata Anushasna Parva Chapter 147:3

Mahabharata Anushasna Parva (Dana Dharma Parva) Chapter 147:3 Identical with Brahma, he will like and love the Brahmanas, and the Brahmanas will like and love him, that scion of Yadu's race will liberate many kings immured in the prison of the ruler of the Magadhas, after vanquishing that ruler named Jarasandha in his capital buried among mountains. Endued with great energy, he will be rich with the jewels and gems of all the rulers of the earth. Indeed, in energy he will be unrivalled on earth, possessed of great prowess, he will be the king of all kings of the earth. Foremost among all the Surasenas, the puissant one, residing at Dwaraka, will rule and protect the whole earth after vanquishing all her lords, conversant as he will be with the science of polity. Assembling together, do ye all adore Him, as ye adore the Eternal Brahman, with speech, floral wreaths, and excellent incense and perfumes. He who wishes to see me or the Grandsire Brahma should first see the illustrious Vasudeva of great puissance. If He is seen I am seen, as also the Grandsire Brahman, that foremost of all the gods. In this I do not deem there is any difference. Know this, ye Rishis of ascetic wealth! That person with whom the lotus-eyed Vasudeva becomes gratified, all the deities with Brahma amongst them will also become gratified with. That man who will seek the protection of Kesava will succeed in earning great achievements and victory and Heaven. He will be an instructor in religion and duties, and will earn great religious merit. All persons conversant with religion and duties should, with great alacrity, bow down unto that Lord of all the gods. By adoring that puissant one, one will acquire great merit. Endued with great energy, that god, with the desire of benefiting all creatures, created millions of Rishis for the sake of righteousness. Those millions of Rishis, thus created by that great Ordainer are now residing on the mountains of Gandhamadana, headed by Sanatkumara and engaged in the observance of penances. Hence, ye foremost of regenerate ones, that foremost of all eloquent persons, the righteous Vasudeva should be adored by all. The illustrious Hari, the puissant Narayana, is verily, the foremost of all beings in Heaven. Adored, he adores, and honoured he honours; unto them that make offerings to him, he makes offerings in return. Worshipped, he worships in return, if seen always, he sees the seers always. If one seeks His refuge and protection, He seeks the seeker as his refuge in return. Ye foremost of all righteous ones, if adored and worshipped, He adores and worships in return. Even this is the high practice of the faultless Vishnu. Even this is the vow that is practised by all righteous people, of that first of all deities, that puissant Lord of all creatures. He is always worshipped in the world. Verily, that Eternal Being is worshipped by even the deities. Those persons that are devoted to Him with the steadiness of a vow become liberated from calamity and fear in proportion to his devotion. The regenerate ones should always worship Him in thought, word, and deed.