somapā nāma viprāṇāṃ kṣatriyāṇāṃ havirbhujaḥ / vaiśyānām ājyapā nāma śūdrāṇāṃ tu sukālinaḥ //
The Somapas those of the Brahmanas, the Havirbhugs those of the Kshatriyas, the Agyapas those of the Vaisyas, but the Sukalins those of the Sudras.