Valmiki Ramayana Kishkindha Kanda Sarga 11 Shloka 79
Original Shlokaकिं तु तस्य बलज्ञोऽहं दुर्भ्रातुर्बलशालिनः। अप्रत्यक्षं तु मे वीर्यं समरे तव राघव4.11.79।।
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किं तु but, अहम् I, बलशालिनः mighty, दुर्भ्रातुः bad brother's, तस्य his, बलज्ञः know his strength, राघव Rama, समरे in war, तव your, वीर्यं तु power also, मे I, अप्रत्यक्षम् not see.
'What to do? I know the strength of my mighty bad brother. But so far I have not seen your power in a battle.