Mahabharata 3.25.6
त्वया ह्युपासिता नित्यं ब्राह्मणा भरतर्षभद्वैपायनप्रभृतयो नारदश्च महातपाः
tvayā hyupāsitā nityaṃ brāhmaṇā bharatarṣabhadvaipāyanaprabhṛtayo nāradaśca mahātapāḥ
Our plain-language meaning of this verse is waiting for scholar review.