Matsyapurana 15.10

15.10

jananī brahmadattasya yogasiddhā ca gauḥ smṛtā
kṛṣṇo gauraḥ prabhuḥ śambhur bhaviṣyanti ca te sutāḥ //

Sûta said : "In heaven, there are other illustrious regions called Vibharâjas where dwell the pious Barhiṣada piṭris so named because their Vimânas are carried by peacocks (barhi) and where people making offerings to the manes of their deceased ancestors go and find happiness. These Piṭris are venerated by the Devas, Asuras, Apsarâs, Gandharvas, Râkṣasas and Yakṣas. The Barhiṣada Piṭris, possessed of great Yogic powers, are the sons of the sage Pulastya. They are the givers of safety and freedom from fear to their devotees. These very Barhiṣada Piṭris had a mânasa daughter, named Pîvarî. She was well versed in, and mother of, Yoga and practised severe penances for a long time, when Lord Viṣṇu pleased with her devotion appeared before her and directed her to ask for a boon; she prayed for a husband who would be beautiful, possessed of Yogic powers and able to curb his passions. The Lord, in granting her that boon, said: "Thou shalt be the wife of Śuka the teacher of Yoga, the son of Vyâsa. And thou shalt be blessed with a daughter, named Kritvî, who will be well versed in Yoga and will be married to the manly Rajah of Pañchâla. Kritvî, after practising Yoga, will also be known as Gô, and she will beget a son, named Brahmadatta.—1-10.

"Thou shalt also become the mother of Kṛiṣṇa Gaura Prabhu, and Śambhu, who will be great Mahâtmâs and will ultimately depart to felicity. Thou shalt also attain Mokṣa, after giving birth to such illustrious sons."—11.