Srimad Bhagavatam Canto 12, Chapter 07, Text 03

SB 12.7.3

babhruh sisyo ’thangirasah
 saindhavayana eva ca
adhiyetam samhite dve
 savarnadyas tathapare
 
Translation: 
 
Babhru and Saindhavayana, disciples of Sunaka, studied the two divisions of their spiritual master’s compilation of the Atharva Veda. Saindhavayana’s disciple Savarna and disciples of other great sages also studied this edition of the Atharva Veda.
Srimad Bhagavatam Canto 12, Chapter 07, Text 02
Srimad Bhagavatam Canto 12, Chapter 07, Text 04