Mbh 13.147.2f

Verily, that illustrious one is identical with the immutable Hari. Once on a time the mighty Garuda, the son of Kasyapa, was addressed by the deities in these words, 'Do thou, O puissant one, see if this one has any end!' Though possessed of great energy and might, Garuda, however, failed to find out the end of this illustrious one who is identical with the Supreme Soul. Supporting the whole earth on his head, he resides in the nether regions. He roves through the universe as Sesha, filled with great joy. He is Vishnu. He is the illustrious Ananta. He is the supporter of the earth. He that is Rama is Hrishikesa. He that is Achyuta is Ananta, the bearer of the earth. Both of those foremost of all creatures are celestial and endued with celestial prowess. One of them is armed with the discus and the other with the plough. They deserve every honour and should be seen. I have, through my kindness for you, have thus declared to you the nature of Vasudeva. Even this, ye ascetics possessed of wealth of penances, is Righteousness. I have declared all this to you so that ye may, with reverence and care, worship Krishna, that foremost one of Yadu's race."'"'"