Śatapatha Brāhmaṇa ("of a hundred paths") 1.5.1.24

1.5.1.24

atha hotṛṣadana upaviśati | idamahamarvāvasoḥ sadane sīdāmītyarvāvasurvai nāma devānāṃ hotā tasyaivaitatsadane sīdati

He then sits down on the Hotri's seat, with the formula, 'I here sit down on the seat of the wealth-bestower (arvâvasu, lit. "hither-wealth")!' for one Arvâvasu by name was the Hotri of the gods, and on his seat he accordingly sits down.