This is a prayer from Śrīmad-Bhāgavatam (11.5.29) spoken by Karabhājana Muni when he was questioned by Mahārāja Nimi, the King of Videha, about the incarnations in specific yugas and their method of worship. Karabhājana Muni was one of the nine Yogendras, and he met the King to inform him about future incarnations.