Valmiki Ramayana Yuddha Kanda Sarga 89 Shloka 12
Original Shlokaयदितेप्रथमेयुद्धे न दृष्टोमत्पराक्रमः । अद्यतेदर्शयिष्यामितिष्ठेदानींव्यवस्थितः ।।6.89.12।।
1 source checked for this shloka
प्रथमे first, युद्धे combat, ते to you, मत्पराक्रमः my courage, न दृष्टःयदि if not seen, अद्य now, ते to you, दर्शयिष्यामि will exhibit, इदानीम् this time, व्यवस्थितः stand, तिष्ठ fight
"If you have not seen my courage in the first combat, now I will exhibit. Stand and fight now."