Valmiki Ramayana Yuddha Kanda Sarga 24 Shloka 30

राक्षसाधिप king of Rakshasas, ते to you, सम्भाषितुम् to negotiate, नशक्याः was not possible, अत्र there, सम्प्रश्नः to question, नलम्यते had no opportunity, वानराः Vanaras, प्रकृत्या by nature, कोपनाः are violent, तीक्ष्णाः highly furious.

"O king of Rakshasas! It was not possible to negotiate there with the Vanaras). I had no opportunity to interrogate with them. By nature, Vanaras are violent and are highly furious."