Rigveda 10.88.19

या॒व॒न्मा॒त्रमु॒षसो॒ न प्रती॑कं सुप॒र्ण्यो॒३ वस॑ते मातरिश्वः ।ताव॑द्दधा॒त्युप॑ य॒ज्ञमा॒यन्ब्रा॑ह्म॒णो होतु॒रव॑रो नि॒षीद॑न्॥

yāvanmātramuṣaso na pratīkaṃ suparṇyo3 vasate mātariśvaḥ |tāvaddadhātyupa yajñamāyanbrāhmaṇo hoturavaro niṣīdan ||

Our plain-language meaning of this verse is waiting for scholar review.