Mbh 3.282.2

The descendant of Raghu then caused the ramparts of Lanka to be broken down by a united attack of all those monkeys endued with the speed of the wind. Then Lakshmana, with Vibhishana and the king of the bears marching in the van, blew up the southern gate of the city that was almost impregnable. Rama then attacked Lanka with a hundred thousand crores of monkeys, all possessed of great skill in battle, and endued with reddish complexions like those of young camels. And those crores of greyish bears with long arms, and legs and huge paws, and generally supporting themselves on their broad haunches, were also urged on to support the attack. And in consequence of those monkeys leaping up and leaping down and leaping in transverse directions, the Sun himself, his bright disc completely shaded, became invisible for the dust they raised. And the citizens of Lanka beheld the wall of their town assume all over a tawny hue, covered by monkeys of complexions yellow as the ears of paddy, and grey as Shirisha flowers, and red as the rising Sun, and white as flax or hemp. And the Rakshasas, O king, with their wives and elders, were struck with wonders at that sight. And the monkey warriors began to pull down pillars made of precious stones and the terraces and tops of palatial mansions. And breaking into fragments the propellers of catapults and other engines, they began to cast them about in all directions. And taking up the Sataghnis along with the discs, the clubs, and stones, they threw them down into the city with great force and loud noise. And attacked thus by the monkeys, those Rakshasas that had been placed on the walls to guard them, fled precipitately by hundreds and thousands.