Mahabharata Virat Parva Chapter 71:2

Mahabharata Virat Parva Chapter 71:2 Vaisampayana continued, "Then Virata's son began to describe the prowess of Arjuna, saying, 'Even this one is he that slew the foe, like unto a lion devastating a flock of deer. Even he ranged through crowds of hostile cars, slaying their best of car-warriors. By him was slain a huge, infuriate elephant by means of a single arrow. Pierced by him, that huge beast having its flanks adorned with an armour of gold, fell down piercing the earth with his tusks. By him have the kine been recovered and the Kauravas vanquished in battle. My ears have been deafened by the blare of his conch. It was by this hero of fierce deeds that Bhishma and Drona, along with Duryodhana, were vanquished. That achievement is his and not mine.'" Vaisampayana continued, "Hearing these words of his, the mighty king of the Matsyas, considering himself guilty of having offended Yudhishthira, said unto Uttara in reply, 'I think the time hath come for me to propitiate the sons of Pandu. And, if thou likest, I shall bestow my daughter Uttara upon Arjuna.' "Uttara said, 'Worthy of our adorations and worship and respect, the time hath come for worshipping the illustrious sons of Pandu who deserve to be worshipped by us.' "Virata said, 'When brought under the foe's subjection in battle, it was Bhimasena that rescued me. My kine also have been recovered by Arjuna. It is through the might of their arms that we have obtained victory in battle. Such being the case, all of us, with our counsellors, shall propitiate Yudhishthira the son of Kunti. Blessed be thou, with all thy brothers, O bull among the sons of Pandu. If, O king, we have ever said or done anything in ignorance to offend thee, it behoveth thee to forgive us. The son of Pandu is virtuous.'" Vaisampayana continued, "Then the high-souled Virata, delighted greatly, approached king Yudhishthira and made an alliance with him, and offered him his whole kingdom together with the sceptre and treasury and metropolis. And addressing all the Pandavas, and especially Dhananjaya, the mighty king of the Matsyas repeatedly said, 'By good luck it is that I see you.' And having again and again embraced Yudhishthira and Bhima and the sons of Madri, and smelt their heads, Virata, that owner of a large army, was not satiated with gazing at them. And being highly pleased, he said unto king Yudhishthira, 'By good luck it is that I see you safe from woods. By good luck it is that ye have accomplished with difficulty the period of exile, undiscovered by those wicked wights. I make over my entire kingdom to the sons of Pritha, and what else I have. Let the sons of Pandu accept these without the slightest hesitation. And let Dhananjaya, called also Savyasachin, accept the hand of Uttara: for that best of men is fit to be her lord.' Thus addressed, king Yudhishthira the just cast a look upon Dhananjaya, the son of Pritha. And looked at by his brother, Arjuna said unto the Matsya king, 'O monarch, I accept thy daughter as my daughter-in-law. An alliance of this kind between the Matsya and the Bharatas is, indeed, desirable.'"