SB 12.7.5

trayyāruṇiḥ kaśyapaś ca
 sāvarṇir akṛtavraṇaḥ
vaiśampāyana-hārītau
 ṣaḍ vai paurāṇikā ime
Synonyms: 
trayyāruṇiḥ kaśyapaḥ ca — Trayyāruṇi and Kaśyapa; sāvarṇiḥ akṛta-vraṇaḥ — Sāvarṇi and Akṛtavraṇa; vaiśampāyana-hārītau — Vaiśampāyana and Hārīta; ṣaṭ — six; vai — indeed; paurāṇikāḥ — spiritual masters of the Purāṇas; ime — these.
Translation: 
Trayyāruṇi, Kaśyapa, Sāvarṇi, Akṛtavraṇa, Vaiśampāyana and Hārīta are the six masters of the Purāṇas.