Valmiki Ramayana Sundara Kanda Sarga 3 Shloka 38
Original Shlokaततः कृत्वा महानादं सा वै लङ्का भयावहम्। तलेन वानरश्रेष्ठं ताडयामास वेगिता।।5.3.38।।
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ततः then, सा लङ्का that Lanka, भयावहम् frightening, महानादम् loud noise, कृत्वा after making, वेगिता with speed, वानरश्रेष्ठम् best vanara, तलेन with her palm, ताडयामास struck.
Then the ogress of Lanka made a loud and frightening sound and struck the most powerful vanara with the palm of her hand.