Rigveda 8.16.9

तम॒र्केभि॒स्तं साम॑भि॒स्तं गा॑य॒त्रैश्च॑र्ष॒णय॑: ।इन्द्रं॑ वर्धन्ति क्षि॒तय॑:॥

tamarkebhistaṃ sāmabhistaṃ gāyatraiścarṣaṇaya: |indraṃ vardhanti kṣitaya: ||

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