Rigveda 9.66.12

अच्छा॑ समु॒द्रमिन्द॒वोऽस्तं॒ गावो॒ न धे॒नव॑: ।अग्म॑न्नृ॒तस्य॒ योनि॒मा॥

acchā samudramindavo'staṃ gāvo na dhenava: |agmannṛtasya yonimā ||

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