Mahabharata 3.287.15

अयं तपस्वी भगवान्स्वाध्यायनियतो द्विजःयद्यद्ब्रूयान्महातेजास्तत्तद्देयममत्सरात्

ayaṃ tapasvī bhagavānsvādhyāyaniyato dvijaḥyadyadbrūyānmahātejāstattaddeyamamatsarāt

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