Mahabharata 12.259.2
भीष्म उवाच · bhīṣma uvāca
अत्राप्युदाहरन्तीममितिहासं पुरातनम्द्युमत्सेनस्य संवादं राज्ञा सत्यवता सह
atrāpyudāharantīmamitihāsaṃ purātanamdyumatsenasya saṃvādaṃ rājñā satyavatā saha
Our plain-language meaning of this verse is waiting for scholar review.