Rigveda 7.71.5

यु॒वं च्यवा॑नं ज॒रसो॑ऽमुमुक्तं॒ नि पे॒दव॑ ऊहथुरा॒शुमश्व॑म् ।निरंह॑स॒स्तम॑सः स्पर्त॒मत्रिं॒ नि जा॑हु॒षं शि॑थि॒रे धा॑तम॒न्तः॥

yuvaṃ cyavānaṃ jaraso'mumuktaṃ ni pedava ūhathurāśumaśvam |niraṃhasastamasaḥ spartamatriṃ ni jāhuṣaṃ śithire dhātamantaḥ ||

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