Mbh 4.26.2b

Let the search be made on the banks of rivers, in holy regions, in villages and towns, in retreats of ascetics, in delightful mountains and mountain-caves.’ When Karna ceased, Duryodhana’s second brother Dussasana, wedded to a sinful disposition, then addressed his eldest brother and said, ‘O monarch, O lord of men, let those spies only in whom we have confidence, receiving their rewards in advance, once more go after the search. This and what else hath been said by Karna have our fullest approval. Let all the spies engage themselves in the search according to the directions already given. Let these and others engage in the search from province to province according to approved rules. It is my belief, however, that the track the Pandavas have followed or their present abode or occupation will not be discovered. Perhaps, they are closely concealed; perhaps, they have gone to the other side of the ocean. Or, perhaps, proud as they are of their strength and Courage, they have been devoured by wild beasts; or perhaps, having been overtaken by some unusual danger, they have perished for eternity. Therefore, O prince of the Kuru race, dispelling all anxieties from thy heart, achieve what thou wilt, always acting according to thy energy.’”