Vishnu Puran 36 (with English subtitle)

Prahlad's son Virochan is appointed as prince. On suggestion of Shukracharya, Virochan starts his prince-hood with the act of hunting this does not please Prahlad, his wife and his mother. Virochan meets calamity in forest. When a tree falls, he saves a sage and himself from that. Since injured, they go in search of a place and reach the hut of sage Vats. There they meet his daughter Deepawali. Both of them fall in love with her. On not seeing Virochan, Prahlad instead of sending his soldiers, himself go in search of his son.