Valmiki Ramayana Kishkindha Kanda Sarga 11 Shloka 83
Original Shlokaयदि न प्रत्ययोऽस्मासु विक्रमे तव वानर। प्रत्ययं समरे श्लाघ्यमहमुत्पादयामि ते4.11.83।।
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वानर monkey, विक्रमे in valour, अस्मासु in us, तव to you, प्रत्ययः faith, न यदि if not, अहम् I, समरे in combat, श्लाघ्यम् praiseworthy, प्रत्ययम् confidence, ते to you, उत्पादयामि create.
'If you have no confidence in my strength in fight, O monkey, I will create it in you so much so that you will admire it.'