Rigveda 9.109.7

१२इन्दु॑: पविष्ट॒ चारु॒र्मदा॑या॒ऽपामु॒पस्थे॑ क॒विर्भगा॑य १३बिभ॑र्ति॒ चार्विन्द्र॑स्य॒ नाम॒ येन॒ विश्वा॑नि वृ॒त्रा ज॒घान॑॥

12indu: paviṣṭa cārurmadāyā'pāmupasthe kavirbhagāya 13bibharti cārvindrasya nāma yena viśvāni vṛtrā jaghāna ||

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