SB 1.4.22
atharvangirasam asit
sumantur daruno munih
itihasa-purananam
pita me romaharsanah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
The Sumantu Muni Angira, who was very devotedly engaged, was entrusted with the Atharva Veda. And my father, Romaharsana, was entrusted with the Puranas and historical records.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
In the sruti-mantras also it is stated that Angira Muni, who strictly followed the rigid principles of the Atharva Veda, was the leader of the followers of the Atharva Veda.