Mbh 5.168.1a

“‘Bhishma said, “This thy maternal uncle Sakuni is, O king, equal to a single Ratha. Having caused the (present) hostilities (to break out) with the sons of Pandu, he will fight. There is no doubt in this. His troops are irresistible when rushing to battle. Armed with various kinds of weapons in abundance, in speed, they are equal to the very wind. The mighty bowman (Aswatthaman) who is Drona’s son surpasseth all bowmen. Acquainted with all modes of warfare, and of unbaffled weapons, he is a Maharatha. Like the wielder of Gandiva, the shafts of this warrior, shot from his bow, proceed in a continuous line, touching one another. If he wishes it, this Maharatha is capable of consuming the three worlds. Engaged in austerities in his hermitage, he hath, by these, increased both his fury and energy. Possessed of great intelligence, he hath been favoured by Drona with (the gift of all) celestial weapons. There is, however, O bull of Bharata’s race, one great defect in him, in consequence of which, O best of kings, I do not regard him either as a Ratha or a Maharatha. This regenerate man is exceedingly fond of living, life being very dear to him. Amongst the warriors of both armies there is no one who can be regarded as his peer. On even a single car he can annihilate the very army of the celestials. Possessed of a strong frame, he can split the very mountains by the flaps of his bow-string, striking against the leathern fence on his left arm. Endued with innumerable qualities, this smiter of fierce effulgence will wander (over the field of battle), incapable of being withstood like Yama himself, mace in hand. Resembling the fire at the end of the Yuga as regards his fury, possessed of leonine neck, and endued with great lustre, Aswatthaman will extinguish the embers of this battle between the Bharatas. His father (Drona) is endued with great energy, and though aged, is still superior to many young men. He will achieve great feats in battle. I have no doubt of this.