Mbh 1.2.14b

It was then that the illustrious Krishna, moved by kindness and a desire for peace, went himself to the Kaurava capital, Hastinapura, for bringing about peace. Then comes the rejection by prince Duryodhana of the embassy of Krishna who had come to solicit peace for the benefit of both parties. Here hath been recited the story of Damvodvava; then the story of the high-souled Matuli’s search for a husband for his daughter: then the history of the great sage Galava; then the story of the training and discipline of the son of Bidula. Then the exhibition by Krishna, before the assembled Rajas, of his Yoga powers upon learning the evil counsels of Duryodhana and Karna; then Krishna’s taking Karna in his chariot and his tendering to him of advice, and Karna’s rejection of the same from pride. Then the return of Krishna, the chastiser of enemies from Hastinapura to Upaplavya, and his narration to the Pandavas of all that had happened. It was then that those oppressors of foes, the Pandavas, having heard all and consulted properly with each other, made every preparation for war. Then comes the march from Hastinapura, for battle, of foot-soldiers, horses, charioteers and elephants. Then the tale of the troops by both parties. Then the despatch by prince Duryodhana of Uluka as envoy to the Pandavas on the day previous to the battle. Then the tale of charioteers of different classes. Then the story of Amba. These all have been described in the fifth Parva called Udyoga of the Bharata, abounding with incidents appertaining to war and peace. O ye ascetics, the great Vyasa hath composed one hundred and eighty-six sections in this Parva. The number of slokas also composed in this by the great Rishi is six thousand, six hundred and ninety-eight.