Devibhagavatapurana 5.1.6

5.1.6

sūta uvāca |
śṛṇudhvaṃ kāraṇaṃ tatra mayā vyāsaśrutañca yat |
prabravīmi mahābhāgāḥ kathāṃ kṛṣṇaguṇānvitām ||

Sûta spoke:-- “Hear then, the reasons, O noble Risis! that I heard from Vyâsa; I will now sing before you those meritorious deeds S’rî Krisnâ.” The son of Parîksit, the intelligent Janamejaya had also the same doubts that you now have, when he heard the story before from Vyâsa; and he asked the same questions that you now ask.”