Ramayana
तमापतन्तं सहसा वालिपुत्रोऽङ्गदस्तदा । रावणोऽयमिति ज्ञात्वा तलेनाभिजघान ह ॥ ४-४८-२०
Mistaking him for Ravana, Angada, Vali's son at once pounced on him and slapped him with his palm. ॥ 4-48-20॥
english translation
tamApatantaM sahasA vAliputro'GgadastadA । rAvaNo'yamiti jJAtvA talenAbhijaghAna ha ॥ 4-48-20
hk transliteration by Sanscript