Vishnupurana 4.3.4

4.3.4

rasātale mauneyā nāma gandharvā babhūvuḥṣaṭkoṭisaṃkhyātāstair aśeṣāṇi nāgakulānyapahṛtapradhānaratnādhipatyānyakriyanta //

In the regions below the earth the Gandharbas called Mauneyas (or sons of the Muni Kaśyapa), who were sixty millions in number, had defeated the tribes of the Nágas, or snake-gods, and seized upon their most precious jewels, and usurped their dominion. Deprived of their power by the Gandharbas, the serpent chiefs addressed the god of the gods, as he awoke from his slumbers; and the blossoms of his lotus eyes opened while listening to their hymns. They said, "Lord, how shall we be delivered from this great fear?" Then replied the first of males, who is without beginning, "I will enter into the person of Purukutsa, the son of Mándhátri, the son of Yuvanáśwa, and in him will I quiet these iniquitous Gandharbas." On hearing these words, the snake-gods bowed and withdrew, and returning to their country dispatched Narmadá to solicit the aid of Purukutsa.