Mahabharata Sabha Parva(Lokapala Sabhakhayana Parva)
Mahabharata Sabha Parva Chapter 13:2
'Yudhishthira said,—"How may this wish that I entertain of performing the excellent sacrifice of Rajasuya that is worthy of an emperor, bear fruit, in consequence of my faith and speech alone.'" Vaisampayana said,—"O thou of eyes like lotus-petals, thus asked by the king, they replied at that time unto Yudhishthira the just in these words,—Being conversant with the dictates of morality, thou art, O king, worthy to perform the grand sacrifice of Rajasuya. After the Ritwijas and the Rishis had told these words unto the king, his ministers and brothers highly approved of the speech. The king, however, possessed of great wisdom, and with mind under complete control, actuated by the desire of doing good unto the world, again resolved the matter in his mind, thinking of his own strength and means, the circumstances of time and place and his income and expenditure. For he knew that the wise never come to grief owing to their always acting after full deliberation. Thinking that the sacrifice should not be commenced, pursuant to his own resolution only, Yudhishthira, carefully bearing upon his shoulder the weight of affairs thought of Krishna that persecutor of all sinners as the fittest person to decide the matter, in as much as he knew him to be the foremost of all persons, possessed of immeasurable energy, strong-armed, without birth but born amongst men from Will alone. Reflecting upon his god-like feats the son of Pandu concluded that there was nothing that was unknown to him, nothing that he could not achieve, and nothing that he could not bear, and Yudhishthira, the son of Pritha, having come to this settled resolution soon sent a messenger unto that master of all beings, conveying through him blessings and speeches such as one senior in age might send to one that is younger. And that messenger riding in a swift car arrived amongst the Yadavas and approached Krishna who was then residing in Dwaravati. And Achyuta (Krishna) hearing that the son of Pritha had become desirous of seeing him, desired to see his cousin.