Śatapatha Brāhmaṇa ("of a hundred paths") 3.5.1.18

3.5.1.18

tebhyo vācaṃ dakṣiṇāmānayan | tāṃ na pratyagṛhṇanhāsyāmahe yadi pratigrahīṣyāma iti tadu tadyajñasya karma na vyamucyata yaddākṣiṇamāsīt

They brought Vâk (speech) to them for their sacrificial fee. They accepted her not, saying, 'We shall be losers if we accept her.' And so the performance of that sacrifice was not discharged (completed), as it was one requiring a sacrificial fee.