Rigveda 1.164.3

इ॒मं रथ॒मधि॒ ये स॒प्त त॒स्थुः स॒प्तच॑क्रं स॒प्त व॑ह॒न्त्यश्वा॑: ।स॒प्त स्वसा॑रो अ॒भि सं न॑वन्ते॒ यत्र॒ गवां॒ निहि॑ता स॒प्त नाम॑॥

imaṃ rathamadhi ye sapta tasthuḥ saptacakraṃ sapta vahantyaśvā: |sapta svasāro abhi saṃ navante yatra gavāṃ nihitā sapta nāma ||

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