Mahabharata 5.92.13
अग्निं प्रदक्षिणं कृत्वा ब्राह्मणांश्च जनार्दनःकौस्तुभं मणिमामुच्य श्रिया परमया ज्वलन्
agniṃ pradakṣiṇaṃ kṛtvā brāhmaṇāṃśca janārdanaḥkaustubhaṃ maṇimāmucya śriyā paramayā jvalan
Our plain-language meaning of this verse is waiting for scholar review.