Mahabharata 3.232.19
वैशंपायन उवाच · vaiśaṃpāyana uvāca
अजातशत्रोर्वचनं तच्छ्रुत्वा तु धनंजयःप्रतिजज्ञे गुरोर्वाक्यं कौरवाणां विमोक्षणम्
ajātaśatrorvacanaṃ tacchrutvā tu dhanaṃjayaḥpratijajñe gurorvākyaṃ kauravāṇāṃ vimokṣaṇam
Our plain-language meaning of this verse is waiting for scholar review.