Rigveda 8.13.19

स्तो॒ता यत्ते॒ अनु॑व्रत उ॒क्थान्यृ॑तु॒था द॒धे ।शुचि॑: पाव॒क उ॑च्यते॒ सो अद्भु॑तः॥

stotā yatte anuvrata ukthānyṛtuthā dadhe |śuci: pāvaka ucyate so adbhutaḥ ||

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