Rigveda 1.147.4
यो नो॑ अग्ने॒ अर॑रिवाँ अघा॒युर॑राती॒वा म॒र्चय॑ति द्व॒येन॑ ।मन्त्रो॑ गु॒रुः पुन॑रस्तु॒ सो अ॑स्मा॒ अनु॑ मृक्षीष्ट त॒न्वं॑ दुरु॒क्तैः॥
yo no agne ararivām̐ aghāyurarātīvā marcayati dvayena |mantro guruḥ punarastu so asmā anu mṛkṣīṣṭa tanvaṃ duruktaiḥ ||
Our plain-language meaning of this verse is waiting for scholar review.