Mbh 7.181.2b

[237] That Rakshasa woman, O Partha, who was there within the earth, was slain with her son and kinsmen by means of that mace and the weapon of Sthunakarna. Deprived of his mace in that great battle, Jarasandha was afterwards slain by Bhimasena in thy presence, O Dhananjaya.[238] If the valiant Jarasandha had stood armed with his mace, the very gods with Indra at their head could not have slain him in battle. O best of men! for thy good, the Nishada’s son also, of prowess incapable of being baffled, was, by an act of guile, deprived of his thumb by Drona, assuming the position of his preceptor. Proud and endued with steady prowess, the Nishada’s son, with fingers cased in leathern gloves, looked resplendent like a second Rama. Undeprived of thumb, Ekalavya, O Partha, was incapable of being vanquished in battle by the gods, the Danavas, the Rakshasas, and the Uragas (together). Of firm grasp, accomplished in weapons, and capable of shooting incessantly day and night, he was incapable of being looked at by mere men. For thy good, he was slain by me on the field of battle. Endued with great prowess, the ruler of the Chedis was slain by me before thy eyes. He also was incapable of being vanquished in battle by the gods and the Asuras together. I was born to slay him as also the other enemies of the gods, with thy assistance, O tiger among men, from desire of benefiting the world. Hidimva and Vaka and Kirmira have all been slain by Bhimasena. All those Rakshasas were endued with might equal to that Ravana and all of them were destroyers of Brahmanas and sacrifices. Similarly, Alayudha, possessed of large powers of illusion, had been slain by Hidimva’s son. Hidimva’s son also, I have slain by the employment of means, viz., through Karna with his dart. If Karna had not slain him with his dart in great battle, I myself would have had to slay Bhima’s son Ghatotkacha. From desire of benefiting you, I did not slay him before.