Mahabharata 1.160.20

एवंगुणस्य नृपतेस्तथावृत्तस्य कौरवतस्मै दातुं मनश्चक्रे तपतीं तपनः स्वयम्

evaṃguṇasya nṛpatestathāvṛttasya kauravatasmai dātuṃ manaścakre tapatīṃ tapanaḥ svayam

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