Mbh 7.201.8a

“‘Beholding the Pandava army thus burning in that dreadful battle, thy soldiers, O king, filled with joy, uttered leonine shouts. Indeed, the combatants, desirous of victory and filled with joy, speedily blew thousands of trumpets, O Bharata, of diverse kinds. Darkness having enveloped the world during that fierce battle, the entire Pandava army, with Savyasachin, the son of Panda, could not be seen. We had never before, O king, heard of or seen the like of that weapon which Drona’s son created in wrath on that occasion. Then Arjuna, O king, invoked into existence the Brahma weapon, capable of baffling every other weapon, as ordained by the Lotus-born (Brahma) himself. Within a moment that darkness was dispelled, cool winds began to blow, and all the points of the compass became clear and bright. We then beheld a wonderful sight, viz., a full Akshauhini (of the Pandava troops) laid low. Burnt by the energy of Aswatthaman’s weapon, the forms of the slain could not be distinguished. Then those two heroic and mighty bowmen, viz., Kesava and Arjuna, freed from that darkness, were seen together, like the sun and the moon in the firmament. Indeed, the wielder of Gandiva and Kesava were both unwounded. Equipped with its banners and standards and steeds, with the Anukarsa unjoined; and with all the mighty weapons stored on it remaining uninjured, that car, so terrible to thy warriors, freed from that darkness, shone resplendent on the field. And soon there arose diverse sounds of life mingled with the blare of conchs and the beat of drums, from among the Pandava troops filled with joy. Both hosts thought that Kesava and Arjuna had perished. Beholding Kesava and Arjuna, therefore (freed from darkness and the energy of that weapon) and seeing that reappear so quickly, the Pandavas were filled with joy, and the Kauravas with wonder. Unwounded and full of cheerfulness, those two heroes blew their excellent conchs.