Babhru and Saindhavāyana, disciples of Śunaka, studied the two divisions of their spiritual master’s compilation of the Atharva Veda. Saindhavāyana’s disciple Sāvarṇa and disciples of other great sages also studied this edition of the Atharva Veda.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
बभ्रुः शिष्योऽथाङ्गिरसः सैन्धवायन एव च । अधीयेतां संहिते द्वे सावर्णाद्यास्तथापरे
babhruḥ śiṣyo'thāṅgirasaḥ saindhavāyana eva ca | adhīyetāṃ saṃhite dve sāvarṇādyāstathāpare
SB 12.7.3