Mbh 7.201.4c

Then, the valiant son of Drona, O monarch, riding upon another car, and highly enraged with Satyaki, proceeded against the latter, desirous of slaying him. Beholding him approach again, the grandson of Sini, that chastiser of foes, once more pierced and mangled him with keen shafts, fiercer than those he had used before. Deeply pierced with those arrows of diverse forms by Yuyudhana, that great bowman, viz., the angry son of Drona, smilingly addressed his foe and said, “O grandson of Sini, I know thy partiality for Dhrishtadyumna, that slayer of his preceptor, but thou shalt not be able to rescue him or your own self when attacked by me. I swear to thee, O grandson of Sini, by truth and by my ascetic austerities, that I shall know no peace till I slay all the Panchalas. You may unite the forces of the Pandavas and those of the Vrishnis together, but I shall still slay the Somakas.” Saying this, the son of Drona shot at Satyaki an excellent and straight arrow possessed of the effulgence of the sun, even as Sakra had hurled in days of yore his thunder at the Asura Vritra. Thus shot by Aswatthaman, that arrow, piercing through the armour of Satyaki, and passing through his body, entered the earth like a hissing snake entering its hole. His armour pierced through, the heroic Satyaki, like an elephant deeply struck with the hook, became bathed in blood that flowed from his wound. His bow, with arrow fixed thereon, being then loosened from his grasp, he sat down on the terrace of his car strengthless and covered all over with blood. Seeing this his driver speedily bore him away from Drona’s son. With another shaft, perfectly straight and equipped with goodly wings that scorcher of foes, viz., Aswatthaman, struck Dhrishtadyumna between his eyebrows. The Panchala prince had before this been much pierced; therefore, deeply wounded by that arrow, he became exceedingly weak and supported himself by seizing his flag-staff.