Mbh 6.15.3

“When the combatants were arrayed according to rule and when they were addrest for battle, Duryodhana, O king, said these words to Dussasana,--‘O Dussasana, let cars be speedily directed for the protection of Bhishma, and do thou speedily urge all our divisions (to advance). That hath now come to me of which I had been thinking for a series of years, viz., the meeting of the Pandavas and the Kurus at the head of their respective troops. I do not think that there is any act more important (for us) in this battle than the protecting of Bhishma. If protected he will slay the Pandavas, the Somakas, and the Srinjayas. That warrior of pure soul said,--“I will not slay Sikhandin. It is heard that he was a female before. For this reason he should be renounced by me in battle.” For this, Bhishma should be particularly protected. Let all my warriors take up their positions, resolved to slay Sikhandin. Let also all the troops from the east, the west, the south, and the north, accomplished in every kind of weapon, protect the grandsire. Even the lion of mighty strength, if left unprotected may be slain by the wolf. Let us not, therefore, cause Bhishma to be slain by Sikhandin like the lion slain by the jackal. Yudhamanyu protects the left wheel, and Uttamauja protects the right wheel of Phalguni. Protected by those two, Phalguni himself protects Sikhandin. O Dussasana, act in such a way that Sikhandin who is protected by Phalguni and whom Bhishma will renounce, may not slay Ganga’s son.’”