Mahabharata 4.46.16

4.46.16

vanavāse hyanirvṛtte darśayenna dhanaṃjayaḥ |
dhanaṃ vālabhamāno'tra nādya naḥ kṣantumarhati || 16 ||

"Drona said, 'Appeased I have already been at the words first spoken by Bhishma, the son of Santanu. Let such arrangements be made that Partha may not be able to approach Duryodhana in battle. And let such arrangements be made that king Duryodhana may not be captured by the foe, in consequence either of his rashness or want of judgment. Arjuna hath not, to be sure, revealed himself before the expiry of the term of exile. Nor will he pardon this act (of ours) today, having only recovered the kine. Let such arrangements, therefore, be made that he may not succeed in attacking Dhritarashtra's son and defeating our troops. Like myself (who am doubtful of the completion of period of exile) Duryodhana also had said so before. Bearing it in mind, it behoveth the son of Ganga to say what is true.'"