Mahabharata 7.157.36

तथेति च प्रतिज्ञातं कर्णेन शिनिपुंगवहृदि नित्यं तु कर्णस्य वधो गाण्डीवधन्वनः

tatheti ca pratijñātaṃ karṇena śinipuṃgavahṛdi nityaṃ tu karṇasya vadho gāṇḍīvadhanvanaḥ

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