Valmiki Ramayana Yuddha Kanda Sarga 95 Shloka 13
Original Shlokaवैदेहींप्रार्थयानंतंविराधंप्रेक्षयराक्षसम् । हतमेकेनरामेणपर्याप्तंतन्निदर्शनम् ।।6.95.13।।
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वैदेहीम् Vaidehi, प्रार्धयानम् solicitous, एकेन one, रामेण by Rama, हतम् killed, राक्षसम् Rakshasa, विराधम् Viradha, प्रेक्षय perceiving, तत् that, निदर्शनम् proof, पर्याप्तम् sufficient
"On perceiving that Viradha solicitous of Vaidehi, the Rakshasa was killed by Rama with one arrow. That is sufficient proof (of Rama's valour)."