Valmiki Ramayana Yuddha Kanda Sarga 17 Shloka 25
Original Shlokaप्रकृत्याराक्षसेन्द्रस्यभ्राताऽमित्रस्यतेप्रभो: । आगतश्चरिपोस्साक्षात्कथमस्मिन्हिविश्वसेत् ।।6.17.25।।
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प्रभो: O king एषः these, प्रकृत्या by nature, राक्षसोहि: Rakshasas also, अमित्रस्य: enemy's, भ्राता: brother, साक्षात् evidently, रिपोः enemies, आगतः arrived, आस्मिन् himself, कथम् how, विश्वसेत् to trust.
"O king, by nature they are Rakshasas, and he is brother of the enemy. Evidently, he has arrived by himself. How to trust him?"