Valmiki Ramayana Sundara Kanda Sarga 43 Shloka 7
Original Shlokaतस्यास्फोटितशब्देन महता श्रोत्रघातिना। पेतुर्विहङ्गमास्तत्र चैत्यपालाश्च मोहिताः।।5.43.7।।
1 source checked for this shloka
तस्य by the, श्रोत्रघातिना by the deafening sound, महता with a loud, अस्फोटितशब्देन with the sound of patting, तत्र there, विहङ्गमाः birds, पेतुः fell down, चैत्यपालाश्च guards of the palace, मोहिताः lost consciousness.
By the deafening sound caused by the patting, the birds fell down and the guards of the palace lost consciousness.