Srimad-Bhagavatam: Canto 12 - Chapter 1 - Verse 5
Sanskrit:
त्रय्यारुणि: कश्यपश्च सावर्णिरकृतव्रण: ।वैशम्पायनहारीतौ षड् वै पौराणिका इमे ॥ ५ ॥
ITRANS:
trayyāruṇiḥ kaśyapaś casāvarṇir akṛtavraṇaḥvaiśampāyana-hārītauṣaḍ vai paurāṇikā ime
Translation:
Trayyāruṇi, Kaśyapa, Sāvarṇi, Akṛtavraṇa, Vaiśampāyana and Hārīta are the six masters of the Purāṇas.