Mbh 12.340.7a

"'Bhishma continued, "Hundreds and thousands of great-Kalpas, hundreds and thousands of Creation and Dissolutions, O king of kings, have been over and have become incidents of the past.[1840] In the beginning of every cycle of Creation, Brahman, endued with great puissance and who creates all things, is remembered (by Narayana). Brahman knows well, O king, that Narayana, that foremost of all gods is very much superior to him. He knows that Narayana is the Supreme Soul, that he is the Supreme Lord, that He is the Creator of Brahman himself. It was only unto that conclave of Rishis, crowned with ascetic success, that came to the abode of Brahman, that Narada recited his narrative which is a very ancient one, and which is perfectly consistent with the Vedas. The deity Surya, having heard that narrative from those Rishis crowned with ascetic success,[1841] repeated it to the six and sixty thousands of Rishis, O king, of cleansed souls, that follow in his train. And Surya, the deity that imparts heat unto all worlds, repeated that narrative unto those Beings also, of cleansed souls, that have been created (by Brahman) for always journeying in the van of Surya.[1842] The high-souled Rishis that follow in Surya's train, O son, repeated that excellent narrative unto the deities assembled on the breast of Meru. That best of ascetics, viz., the regenerate Asita, then having heard the narrative from the deities, repeated it unto the Pitris, O king of kings. I heard it from my sire Santanu, O son, who recited it to me formerly. Myself having heard it from my sire, I have repeated it to thee, O Bharata. Deities and Munis, who have heard this excellent old narrative, which is a Purana--all adore the Supreme Soul. This narrative, belonging to the Rishis and thus handed down from one to another, should not, O king, be communicated by thee to any one that is not a worshipper of Vasudeva.