Bhagavatapurana 12.7.6

12.7.6

adhīyanta vyāsa-śiṣyāt saṃhitāṃ mat-pitur mukhāt /
ekaikām aham eteṣāṃ śiṣyaḥ sarvāḥ samadhyagām //

6. All these studied the whole collection under my father, Romaharshana, (lit. learned from the lips of my father) who is the disciple of Sri Vyasa; each learning but one collection. And as their disciple I learnt them all.