Bhagavatapurana 6.18.16

6.18.16

anuhrādasya sūryāyāṃ bāṣkalo mahiṣastathā /
virocanastu prāhrādirdevyāṃ tasyābhavadbaliḥ //

15. Dhamani wife of Hrada gave birth to Vatapi and Ilwala; of whom the latter cooked Vatapi for Agastya his guest. 16. Anuhrada had by his wife Surmya two sons named Bhaskala and Mahisha; Virochana is the son of Prahlada and he had by his queen a son called Bali.