Rigveda 10.66.8

धृ॒तव्र॑ताः क्ष॒त्रिया॑ यज्ञनि॒ष्कृतो॑ बृहद्दि॒वा अ॑ध्व॒राणा॑मभि॒श्रिय॑: ।अ॒ग्निहो॑तार ऋत॒सापो॑ अ॒द्रुहो॒ऽपो अ॑सृज॒न्ननु॑ वृत्र॒तूर्ये॑॥

dhṛtavratāḥ kṣatriyā yajñaniṣkṛto bṛhaddivā adhvarāṇāmabhiśriya: |agnihotāra ṛtasāpo adruho'po asṛjannanu vṛtratūrye ||

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