Mahabharata 13.109.7

वैशंपायन उवाच · vaiśaṃpāyana uvāca

एवं ब्रुवाणं कौन्तेयं धर्मज्ञं धर्मतत्त्ववित्धर्मपुत्रमिदं वाक्यं भीष्मः शांतनवोऽब्रवीत्

evaṃ bruvāṇaṃ kaunteyaṃ dharmajñaṃ dharmatattvavitdharmaputramidaṃ vākyaṃ bhīṣmaḥ śāṃtanavo'bravīt

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