Valmiki Ramayana Sundara Kanda Sarga 42 Shloka 32
Original Shlokaतस्यास्फोटितशब्देन महता सानुनादिना। पेतुर्विहङ्गा गगनादुच्चैश्चेदमघोषयत्।।5.42.32।।
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सानुनादिना by the frightening echoing sound, महता with great, तस्य his, अस्फोटितशब्देन by the sound of the patting, विहङ्गाः birds, गगनात् from the sky, पेतुः fell down, उच्चैः with a loud noise, इदम् thus, अघोषयत् च proclaimed.
By the highly frightening sound caused by Hanuman patting, the birds from the sky fell down making a loud noise and Hanuman proclaimed in a loud voice as follows: