Harivamsha 3.59

3.59

hiraṇyakaśipoḥ putrāś catvāraḥ prathitaujasaḥ
anuhrādaś ca hrādaś ca prahrādaś caiva vīryavān //

Hiraṇyakaśipu had four sons of celebrated power:
Anuhrāda, Hrāda, and heroic Prahrāda;