Valmiki Ramayana Yuddha Kanda Sarga 89 Shloka 30

तयोः those two, भीमः fierce, तुमुलः tumultuous, तलनिस्स्वनः sound of palms clapping, पृथक् पृथक्separately, separately, श्शुश्रुवे impact, दारुणः threatening, निर्घातःइव like violent wind, जनम् risen, प्रकम्पयन् shaken

The fierce and tumultuous impact of the sound produced by their palms (clappings) could be heard separately. It was like a violent wind that had shaken.