Mbh 7.163.3a

“Sanjaya continued, ‘Understanding the wishes of Drona who was bent on battle, Duryodhana, on that night, O king, addressing his obedient brothers, viz., Vikarna and Chitrasena and Suparsva and Durdharsha and Dirghavahu, and all those that followed them, said those words, “Ye heroes of great valour, struggling with resolution, all of you protect Drona from the rear. The son of Hridika will protect his right and Sala his left.” Saying this, thy son then urged forward placing them at the van, the remnant of the brave and mighty Trigarta car-warriors, saying, “The preceptor is merciful. The Pandavas are fighting with great resolution. While engaged in slaughtering the foe in battle, protect him well, uniting together. Drona is mighty in battle; is endued with great lightness of hand and great valour. He can vanquish the very gods in battle,--what need then be said of the Pandavas and the Somakas? All of you, however, united together and struggling with great resolution in this terrible battle, protect the invincible Drona from that mighty car-warrior, viz., Dhrishtadyumna. Except Dhrishtadyumna, I do not see the man amongst all the warriors of the Pandavas that can vanquish Drona in battle. I, therefore, think that we should, with our whole soul, protect the son of Bharadwaja. Protected (by us), he is sure to slay the Somakas and the Srinjayas, one after another. Upon the slaughter of all the Srinjayas at the head of the (Pandava) army, Drona’s son without doubt, will slay Dhrishtadyumna in battle. Similarly, the mighty car-warrior Karna will vanquish Arjuna in battle. As regards Bhimasena and others clad in mail, I will subjugate them all in fight. The rest of the Pandavas deprived of energy, will be easily defeated by the warriors. It is evident, my success then will last for ever. For these reasons, protect the mighty car-warrior Drona in battle.”