Rigveda 7.9.6
त्वाम॑ग्ने समिधा॒नो वसि॑ष्ठो॒ जरू॑थं ह॒न्यक्षि॑ रा॒ये पुरं॑धिम् ।पु॒रु॒णी॒था जा॑तवेदो जरस्व यू॒यं पा॑त स्व॒स्तिभि॒: सदा॑ नः॥
tvāmagne samidhāno vasiṣṭho jarūthaṃ hanyakṣi rāye puraṃdhim |puruṇīthā jātavedo jarasva yūyaṃ pāta svastibhi: sadā naḥ ||
Our plain-language meaning of this verse is waiting for scholar review.