Mbh 4.25.2a

“Meanwhile, the spies employed by Dhritarashtra’s son, having searched various villages and towns and kingdoms and done all that they had been commanded to do and completed their examination, in the manner directed, of the countries indicated in their orders, returned to Nagarupa, gratified with at least one thing that they had learnt.[20] And seeing Dhritarashtra’s son king Duryodhana of the Kuru race seated in his court with Drona and Karna and Kripa, with the high-souled Bhishma, his own brothers, and those great warriors--the Trigartas, they addressed him, saying, ‘O lord of men, great hath been the care always bestowed by us in the search after the sons of Pandu in that mighty forest. Searched have we through the solitary wilderness abounding with deer and other animals and overgrown with trees and creepers of diverse kind. Searched have we also in arbours of matted woods and plants and creepers of every species, but we have failed in discovering that track by which Pritha’s son of irrepressible energy may have gone. Searched have we in these and other places for their foot-prints. Searched have we closely, O king, on mountain tops and in inaccessible fastnesses, in various kingdoms and provinces teeming with people, in encampments and cities. No trace have yet been found of the sons of Pandu. Good betide thee, O bull among men, it seems that they have perished without leaving a mark behind. O foremost of warriors, although we followed in the track of those warriors, yet, O best of men, we soon lost their footprints and do not know their present residence. O lord of men, for some time we followed in the wake of their charioteers. And making our inquiries duly, we truly ascertained what we desired to know. O slayer of foes, the charioteers reached Dwaravati without the sons of Pritha among them. O king, neither the sons of Pandu, nor the chaste Krishna, are in that city of Yadavas.