Rigveda 8.35.21

र॒श्मीँरि॑व यच्छतमध्व॒राँ उप॑ श्या॒वाश्व॑स्य सुन्व॒तो म॑दच्युता ।स॒जोष॑सा उ॒षसा॒ सूर्ये॑ण॒ चाऽश्वि॑ना ति॒रोअ॑ह्न्यम्॥

raśmīm̐riva yacchatamadhvarām̐ upa śyāvāśvasya sunvato madacyutā |sajoṣasā uṣasā sūryeṇa cā'śvinā tiroahnyam ||

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