Mahabharata 6.46.53

6.46.53

pakṣakoṭiprapakṣeṣu pakṣānteṣu ca vāraṇāḥ |
jagmuḥ parivṛtā rājaṃścalanta iva parvatāḥ || 53 ||

And on the joints of the wings, the wings and the extremities of the wings proceeded elephants in large bodies, looking, O king, like blazing mountains. And the rear was protected by Virata aided by the Kekayas, and the ruler of Kasi and the king of the Chedis, with thirty thousand cars. Forming, O Bharata, their mighty array thus, the Pandavas, expectant of sunrise, waited for battle, all cased in armour. And their white umbrellas, clean and costly, and brilliant as the sun, shone resplendent on their elephants and cars."