Rigveda 3.51.5

पू॒र्वीर॑स्य नि॒ष्षिधो॒ मर्त्ये॑षु पु॒रू वसू॑नि पृथि॒वी बि॑भर्ति ।इन्द्रा॑य॒ द्याव॒ ओष॑धीरु॒तापो॑ र॒यिं र॑क्षन्ति जी॒रयो॒ वना॑नि॥

pūrvīrasya niṣṣidho martyeṣu purū vasūni pṛthivī bibharti |indrāya dyāva oṣadhīrutāpo rayiṃ rakṣanti jīrayo vanāni ||

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