Rigveda 1.144.4

यमीं॒ द्वा सव॑यसा सप॒र्यत॑: समा॒ने योना॑ मिथु॒ना समो॑कसा ।दिवा॒ न नक्तं॑ पलि॒तो युवा॑जनि पु॒रू चर॑न्न॒जरो॒ मानु॑षा यु॒गा॥

yamīṃ dvā savayasā saparyata: samāne yonā mithunā samokasā |divā na naktaṃ palito yuvājani purū carannajaro mānuṣā yugā ||

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