Rigveda 1.7.1

मधुच्छन्दा वैश्वामित्रः। इन्द्रः। गायत्री। · madhucchandā vaiśvāmitraḥ | indraḥ | gāyatrī |

इन्द्र॒मिद्गा॒थिनो॑ बृ॒हदिन्द्र॑म॒र्केभि॑र॒र्किण॑:।इन्द्रं॒ वाणी॑रनूषत॥

indramidgāthino bṛhadindramarkebhirarkiṇa: |indraṃ vāṇīranūṣata ||

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