Bhagavatapurana 10.78.25

10.78.25

ṛṣer bhagavato bhūtvā śiṣyo 'dhītya bahūni ca /
setihāsa-purāṇāni dharma-śāstrāṇi sarvaśaḥ //

25. —Having been the disciple of the glorious sage, having studied very many Dharma Sastras with Ithihasas and Puranas, one and all;