Ramayana
यथा ऽ शनिरवेभ्यस्तु जायते ऽथ प्रतिश्रुतिः । तथा तयोर्गदापोथैर्दिशः सर्वाः प्रतिश्रुताः ॥ 7-32-55 ॥
Just as an echo is born from the crash of thunderbolts, so from the smashing of their maces all the quarters of the sky were made to resound.
english translation