Mbh 8.73.1j

The awful form of that weapon which was obtained by Karna from that foremost of sages, viz., Rama of Bhrigu's race, hath been displayed. Scorching all the troops, that weapon of exceedingly fierce and awful form is blazing with its own energy, surrounding our vast army. Those arrows, sped from Karna's bow, are coursing in battle thick as swarm of bees, and scorching thy troops. Encountering Karna's weapon in battle, that is irresistible by persons not having their souls under control, there the Pancalas, O Bharata, are flying away in all directions! Yonder, Bhima, of unappeasable wrath, surrounded on all sides by the Srinjayas, is fighting with Karna, O Partha, afflicted by the latter with keen shafts! If neglected, Karna will, O Bharata, exterminate the Pandavas, the Srinjayas, and the Pancalas, like a neglected disease whose germ has entered the body. Save thee I do not see another in Yudhishthira's army that would come home safe and sound, having encountered the son of Radha in battle. Slaying that Karna today with thy keen shafts, O bull among men, act according to thy vow, O Partha, and win great fame. I tell thee truly, thou only art able to vanquish in battle the Kaurava host with Karna amongst them, and no one else, O foremost of warriors! Achieving this great feat, viz., slaying the mighty car-warrior Karna, attain thy object, O Partha, and crowned with success, be happy, O best of men!'"