Vishnupurana 3.6.9

3.6.9

śiṣyam adhyāpayām āsa kabandhaṃ so 'pi taṃ dvidhā
kṛtvā tu devadarśāya tathā pathyāya dattavān //

I will now give you an account of the Sanhitás of the Atharva-veda. The illustrious Muni Sumantu taught this Veda to his pupil Kabandha, who made it twofold, and communicated the two portions to Devaderśa and to Pathya. The disciples of Devaderśa were Maudga, Brahmabali, Śaulkáyani, and Pippaláda. Pathya had three pupils, Jájali, Kumudádi, and Śaunaka; and by all these were separate branches instituted. Śaunaka having divided his Sanhitá into two, gave one to Babhru, and the other to Saindhaváyana; and from them sprang two schools, the Saindhavas and Munjakeśas. The principal subjects of difference in the Sanhitás of the Atharva-veda are the five Kalpas or ceremonials: the Nakshatra Kalpa, or rules for worshipping the planets; the Vaitána Kalpa, or rules for oblations, according to the Vedas generally; the Sanhitá Kalpa, or rules for sacrifices, according to different schools; the Ángirasa Kalpa, incantations and prayers for the destruction of foes and the like; and the Sánti Kalpa, or prayers for averting evil.