Thereafter Lord Brahmā requested Prahlāda Mahārāja, who was standing very near him: My dear son, Lord Nṛsiṁhadeva is extremely angry at your demoniac father. Please go forward and appease the Lord.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
प्रह्लादं प्रेषयामास ब्रह्मावस्थितमन्तिके । तात प्रशमयोपेहि स्वपित्रे कुपितं प्रभुम्
prahlādaṃ preṣayāmāsa brahmāvasthitamantike | tāta praśamayopehi svapitre kupitaṃ prabhum
SB 7.9.3