Rigveda 6.7.5
वैश्वा॑नर॒ तव॒ तानि॑ व्र॒तानि॑ म॒हान्य॑ग्ने॒ नकि॒रा द॑धर्ष ।यज्जाय॑मानः पि॒त्रोरु॒पस्थे ऽवि॑न्दः के॒तुं व॒युने॒ष्वह्ना॑म्॥
vaiśvānara tava tāni vratāni mahānyagne nakirā dadharṣa |yajjāyamānaḥ pitrorupasthe 'vindaḥ ketuṃ vayuneṣvahnām ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book