The Domestic Sutras of Gobhila

...those who select a Rigvedic priest original: "Bahvricha" for the office of royal chaplain Purohitya: the position of a king’s domestic priest and advisor will undoubtedly see their country, kingdom, city, and ministers destroyed. The king who appoints a Yajurvedic priest original: "Adhvaryu" as his royal chaplain will soon be stripped of his wealth and transport such as chariots and horses and be killed by the strike of an enemy's weapon. Just as a lame person is unable to walk on the intended path, or as a bird newly hatched from an egg is unable to soar through the sky like a fully grown bird; so too, a king is unable to achieve progress or success through a Samavedic original: "Chhandoga" priest. Furthermore, if a priest from the Jalada or Maudga branches of the Atharvaveda serves as a king's chaplain, that king will be removed from his throne within ten or twelve months. Only a Brahma priest the high-priest who oversees the entire ritual of the Atharvaveda is the greatest among all priests; they are capable of managing terrible events and performing rites of pacification, and they can protect the sacrifice from many obstacles and dangers.

Angira a sage associated with the Atharvaveda alone is the sole regulating authority of the sacrifice. Atharvavedic priests, who are masters of the Veda of Brahman original: "Brahmaveda", perform the rituals required to pacify various types of sacrificial disturbances Yajnotpata: ill-omens or errors occurring during a ritual—whether they be divine, atmospheric, or earthly. Neither the Yajurvedic, the Samavedic, nor the Rigvedic priests can pacify these various kinds of disturbances. Driven by deep sectarian malice, these authors—blinded by anger—have used these entirely illegal and harsh words against priests of other Vedas and different branches of their own Veda. In doing so, they have shown a complete lack of discernment original: "kandakanda vihinata" in their attempt to assert their own superiority.

A Rigvedic priest destroys the kingdom; a Yajurvedic priest destroys the sons.
A Samavedic priest destroys wealth; therefore, the Atharvavedic priest is the only true Guru.
Whether through ignorance or negligence, the king who takes a Rigvedic priest as his Guru
Will undoubtedly face the destruction of his country, kingdom, city, and ministers.
If a king appoints a Yajurvedic priest as his royal chaplain,
He is quickly slain by weapons, deprived of both wealth and his mounts.
Just as a lame man cannot travel the road, or a hatchling fly through the heavens,
Even so, with a Samavedic Guru, a king never achieves growth.
If the royal chaplain is from the Jalada branch, or somehow from the Maudga branch...

• There are also other branches such as the Shaunaka and Paippalada branches these are the two surviving traditions of the Atharvaveda.