Agniveshyagrihyasutra 2.5.9.6

2.5.9.6

gāṃ vāso hiraṇyaṃ dakṣiṇāṃ dadāti brāhmaṇānannena pariviṣya puṇyāhaṃ svastyayanamṛddhimiti vācayitvā \

Having served the Brahmins with food and made them recite "auspicious day," "well-being," and "prosperity," he gives a cow, a garment, and gold as the sacrificial fee.