Mbh 3.270.1a

Vaisampayana said, “Jayadratha flying for his life upon beholding those two brothers with upraised arms, was sorely grieved and bolted off with speed and coolness. But the mighty and indignant Bhimasena, descending from his chariot, ran after him thus fleeing, and seized him by the hair of his head. And holding him high up in the air, Bhima thrust him on the ground with violence. And seizing the prince by the head, he knocked him about. And when the wretch recovered consciousness, he groaned aloud and wanted to get up on his legs. But that hero endued with mighty arms kicked him on the head. And Bhima pressed him on the breast with his knees as well as with his fists. And the prince thus belaboured, soon became insensible. Then Falguna dissuaded the wrathful Bhimasena from inflicting further chastisement on the prince, by reminding him of what Yudhishthira had said regarding (their sister) Dussala. But Bhima replied, saying, ‘This sinful wretch hath done a cruel injury to Krishna, who never can bear such treatment. He, therefore, deserveth to die at hands! But what can I do? The king is always overflowing with mercy, and thou, too, art constantly putting obstacles in my way from a childish sense of virtue!’ Having said these words, Vrikodara, with his crescent-shaped arrow, shaved the hair of the prince’s head, heaving five tufts in as many places. Jayadratha uttered not a word at this. Then Vrikodara, addressing the foe said, ‘If thou wishest to live, listen to me. O fool! I shall tell thee the means to attain that wish! In public assemblies and in open courts thou must say,--I am the slave of the Pandavas.--on this condition alone, I will pardon thee thy life! This is the customary rule of conquest on the field of battle.’ Thus addressed and treated, king Jayadratha said to the mighty and fierce warrior who always looked awful, ‘Be it so!’ And he was trembling and senseless and begrimed with dust.