Rigveda 6.39.3
अ॒यं द्यो॑तयद॒द्युतो॒ व्य१क्तून्दो॒षा वस्तो॑: श॒रद॒ इन्दु॑रिन्द्र ।इ॒मं के॒तुम॑दधु॒र्नू चि॒दह्नां॒ शुचि॑जन्मन उ॒षस॑श्चकार॥
ayaṃ dyotayadadyuto vya1ktūndoṣā vasto: śarada indurindra |imaṃ ketumadadhurnū cidahnāṃ śucijanmana uṣasaścakāra ||
Our plain-language meaning of this verse is waiting for scholar review.