Rigveda 6.39.4
अ॒यं रो॑चयद॒रुचो॑ रुचा॒नो॒३ऽयं वा॑सय॒द्व्यृ१तेन॑ पू॒र्वीः ।अ॒यमी॑यत ऋत॒युग्भि॒रश्वै॑: स्व॒र्विदा॒ नाभि॑ना चर्षणि॒प्राः॥
ayaṃ rocayadaruco rucāno3'yaṃ vāsayadvyṛ1tena pūrvīḥ |ayamīyata ṛtayugbhiraśvai: svarvidā nābhinā carṣaṇiprāḥ ||
Our plain-language meaning of this verse is waiting for scholar review.