Ramayana
ततो युद्धं प्रवृत्तं तु सुराणां राक्षसैः सह । शस्त्राणि वर्षतां घोरं मेघानामिव संयुगे ॥ 7-28-33 ॥
Then the battle broke out between the gods and the Rakshasas, who rained down weapons fearfully in the fray, like clouds pouring rain.
english translation