Mbh 7.192.1a

“Sanjaya said, ‘Beholding Drona filled with great anxiety and almost deprived of his senses by grief, Dhrishtadyumna, the son of the Panchala king, rushed at him. That hero had, for the destruction of Drona, been obtained by Drupada, that ruler of men, at a great sacrifice, from the Bearer of sacrificial libations. Desirous of slaying Drona, he now took up a victory-giving and formidable bow whose twang resembled the roll of the clouds, whose string was possessed of great strength, and which was irrefragable and celestial. And he fixed on it a fierce arrow, resembling a snake of virulent poison and possessed of the splendour of fire. That arrow, resembling a fire of fierce flame, while within the circle of his bow, looked like the autumnal sun of great splendour within a radiant circle. Beholding that blazing bow bent with force by Prishata’s son, the troops regarded that to be the last hour (of the world). Seeing that arrow aimed at him, the valiant son of Bharadwaja thought that the last hour of his body had come. The preceptor prepared with care to baffle that shaft. The weapons, however, of that high-souled one, O monarch, no longer appeared at his bidding.[253] His weapons had not been exhausted although he had shot them ceaselessly for four days and one night. On the expiry, however, of the third part of that of the fifth day, his arrows became exhausted. Seeing the exhaustion of his arrows and afflicted with grief on account of his son’s death, and in consequence also of the unwillingness of the celestial weapons to appear at his bidding, he desired to lay aside his weapons, as requested by the words of the Rishis also. Though filled with great energy, he could not however, fight as before. Then taking up another celestial bow that Angiras had given him, and certain arrows that resembled a Brahmana’s curse, he continued to fight with Dhrishtadyumna.