Mahabharata 1.1.135

यदाश्रौषं सैन्धवार्थे प्रतिज्ञां; प्रतिज्ञातां तद्वधायार्जुनेनसत्यां निस्तीर्णां शत्रुमध्ये च तेन; तदा नाशंसे विजयाय संजय

yadāśrauṣaṃ saindhavārthe pratijñāṃ; pratijñātāṃ tadvadhāyārjunenasatyāṃ nistīrṇāṃ śatrumadhye ca tena; tadā nāśaṃse vijayāya saṃjaya

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