Mbh 16.3.5b

In fact, every blade was seen to become a terrible bolt having the force of thunder. Son killed sire, and sire killed son, O Bharata. Inebriated with wine, they rushed and fell upon one another. The Kukuras and the Andhakas met with destruction like insects rushing at a blazing fire. As they were thus being slaughtered, no one among them thought of escaping by flight. Knowing that the hour of destruction had come, the mighty-armed Keshava stood there, eyeing everything. Indeed, the slayer of Madhu stood, raising a bolt of iron formed of a blade of grass. Beholding that Samva was slain, as also Charudeshna and Pradyumna and Aniruddha, Madhava became filled with rage. Beholding Gada lying dead on the ground, his wrath became enhanced. The wielder of Sarnga and the discus and the mace then exterminated the Vrishnis and the Andhakas. Hear, O king, what that conquerer of hostile towns, Vabhru of mighty energy and Daruka then said to Krishna, "O holy one, a very large number of men has been slain by thee. Turn now to where Rama has gone. We wish to go there where he has proceeded."'"