Rigveda 5.78.3

अश्वि॑ना वाजिनीवसू जु॒षेथां॑ य॒ज्ञमि॒ष्टये॑ ।हं॒सावि॑व पतत॒मा सु॒ताँ उप॑॥

aśvinā vājinīvasū juṣethāṃ yajñamiṣṭaye |haṃsāviva patatamā sutām̐ upa ||

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