Rigveda 6.16.21

स प्र॑त्न॒वन्नवी॑य॒सा ऽग्ने॑ द्यु॒म्नेन॑ सं॒यता॑ ।बृ॒हत् त॑तन्थ भा॒नुना॑॥

sa pratnavannavīyasā 'gne dyumnena saṃyatā |bṛhat tatantha bhānunā ||

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