Rigveda 10.20.7

य॒ज्ञा॒साहं॒ दुव॑ इषे॒ऽग्निं पूर्व॑स्य॒ शेव॑स्य ।अद्रे॑: सू॒नुमा॒युमा॑हुः॥

yajñāsāhaṃ duva iṣe'gniṃ pūrvasya śevasya |adre: sūnumāyumāhuḥ ||

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