Rigveda 9.66.23

स म॑र्मृजा॒न आ॒युभि॒: प्रय॑स्वा॒न्प्रय॑से हि॒तः ।इन्दु॒रत्यो॑ विचक्ष॒णः॥

sa marmṛjāna āyubhi: prayasvānprayase hitaḥ |induratyo vicakṣaṇaḥ ||

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