Mbh 13.139.1

"'Yudhishthira said, "O grandsire, thou art possessed of great wisdom. Indeed, thou art fully conversant with every branch of learning. In our great race thou art the only individual that swellest with all the sciences. I desire to hear from thee discourses that are interwoven with Religion and Profit, that lead to felicity hereafter, and that are fraught with wonder unto all creatures. The time that has come is fraught with great distress. The like of it does not generally come to kinsmen and friends. Indeed, save thee, O foremost of men, we have now none else that can take the place of an instructor. If, O sinless one, I with my brothers deserve the favour, it behoveth thee to answer the question I desire to ask thee. This one is Narayana who is endued with every prosperity and is honoured by all the kings. Even he waits upon thee, showing thee every indulgence and honouring thee greatly. It behoveth thee to discourse unto me, through affection, for my benefit as also for that of my brothers, in the presence of Vasudeva himself and of all these kings."'