Vaishnava Dharmashastra 73.26

73.26

tataḥ prāṅmukhāgrato yan me rāma iti pradakṣiṇaṃ kṛtvā pratyetya ca, yathāśaktidakṣiṇābhiḥ samabhyarcya, abhiramantu bhavanta ity uktvā, tair ukte 'bhiratāḥ sma iti, devāś ca pitaraś cety abhijapet ||

Afterwards he must, while turning his face towards the Brâhmanas facing the east, circumambulate them from left to right, with the Mantra, 'What a crow (may have eaten of my offering),' and turn back again; he must honour them with sacrificial fees, to the best of his power, saying, 'May you be satisfied,' and on their answering, 'We are satisfied,' he must address them with the Mantra, 'The gods and the manes.'