Revākhaṇḍa ascribed to the Vāyupurāṇa (RKV) 78.21

78.21

ityuccārya dvije deyā dakṣiṇā ca svaśaktitaḥ /
haviṣyānnaṃ viśālākṣa dvijānāṃ caiva dāpayet //

Having uttered this, a sacrificial fee should be given to the twice-born according to one's capacity,
and, O large-eyed one, one should offer oblation-food to the twice-born.