Rigveda 3.5.3
अधा॑य्य॒ग्निर्मानु॑षीषु वि॒क्ष्व१पां गर्भो॑ मि॒त्र ऋ॒तेन॒ साध॑न् ।आ ह॑र्य॒तो य॑ज॒तः सान्व॑स्था॒दभू॑दु॒ विप्रो॒ हव्यो॑ मती॒नाम्॥
adhāyyagnirmānuṣīṣu vikṣva1pāṃ garbho mitra ṛtena sādhan |ā haryato yajataḥ sānvasthādabhūdu vipro havyo matīnām ||
Our plain-language meaning of this verse is waiting for scholar review.