Mahabharata 7.11.26

7.11.26

ahaṃ gṛhītvā rājānaṃ satyadharmaparāyaṇam |
ānayiṣyāmi te rājanvaśamadya na saṃśayaḥ || 26 ||

"Drona said, 'If the heroic Arjuna do not protect Yudhishthira in battle, thou mayst think the eldest Pandava as already brought under thy control. As regards Partha, the very gods and the Asuras together headed by Indra, cannot advance against him in battle. It is for this that I dare not do what thou askest me to do. Without doubt, Arjuna is disciple, and I was his first preceptor in arms. He is, however, young, endued with great good fortune, and excessively intent (on the achievement of his purposes). He hath obtained, again, many weapons from Indra and Rudra. He hath besides been provoked by thee. I dare not, therefore, do what thou askest me. Let Arjuna be removed, by whatsoever means that can be done, from the battle. Upon Partha being withdrawn, thou mayst regard king Yudhishthira as already vanquished. Upon his seizure is victory and not upon his slaughter, O bull among men! Even by stratagem, can his seizure be accomplished. Seizing that king devoted to truth and righteousness, I will, without doubt, O monarch, bring him to thy control this very day, if he stays before me in battle even for a moment, of course, if Dhananjaya, the son of Kunti, that tiger among men, be withdrawn from the field. In Phalguni's presence, however, O king, Yudhishthira is incapable of being taken in battle even by the gods and the Asuras headed by Indra.'