Mahabharata 7.86.13
जानीषे हि रणे द्रोणं रभसं श्रेष्ठसंमतम्प्रतिज्ञा चापि ते नित्यं श्रुता द्रोणस्य माधव
jānīṣe hi raṇe droṇaṃ rabhasaṃ śreṣṭhasaṃmatampratijñā cāpi te nityaṃ śrutā droṇasya mādhava
Our plain-language meaning of this verse is waiting for scholar review.