Parāçara said:—Having said this Vishnu disappeared from his sight, O Maitreya and Prahlāda again went to his father and bowed down before him. Having smelt his forehead, embraced him and shed tears, the father said, "Dost thou live my child?" The Great Asura treated him with kindness and repented for his past actions. And Prahlāda, conversant with piety, attended diligently upon his father and preceptor.
In plain words: After Vishnu disappears, Prahlada goes back and bows to his father. His father, in tears, hugs him and asks, "My child, are you alive?" He is kind to him and regrets what he did. Prahlada then lovingly takes care of his father and his teacher.