The Great Epic of the Bhārata dynasty 12.201.30

12.201.30

atreḥ putraśca bhagavāṃstathā sārasvataḥ prabhuḥ |
ete nava mahātmānaḥ paścimāmāśritā diśam || 30 ||

Amongst them, the Adityas are Kshatriyas, and the Maruts are Vaisyas. The two Aswins, engaged in severe penances, have been said to be Sudras. The deities sprung from Angirasa's line have been said to be Brahmanas. This is certain. Thus have I told thee about the fourfold order among the gods. The person who, after rising from his bed at morn, recites the names of these deities, becomes cleansed of all his sins whether committed by himself intentionally or Unintentionally, or whether born of his intercourse with others. Yavakriti, Raivya, Arvavasu, Paravasu, Ausija, Kashivat, and Vala have been said to be the sons of Angiras. These, and Kanwa son of Rishi Medhatithi, and Varhishada, and the well-known seven Rishis who are the progenitors of the three worlds, all reside in the East. Unmucha, Vimucha, Svastyatreya of great energy, Pramucha, Idhmavaha, and the divine Dridhavrata, and Mitravaruna's son Agastya of great energy, these regenerate Rishis all reside in the south. Upangu, Karusha, Dhaumya, Parivyadha of great energy, and those great Rishis called Ekata, Dwita, and Trita, and Atri's son, viz., the illustrious and puissant Saraswata, these high-souled ones reside in the west. Atreya, and Vasishtha, and the great Rishi Kasyapa, and Gautama, Bharadwaja, and Viswamitra, the son of Kusika, and the illustrious son of the high-souled Richika, viz., Jamadagni,--these seven live in the north.