Valmiki Ramayana Yuddha Kanda Sarga 74 Shloka 76

यदाप्रभृति from the beginning, लङ्कायाम् in Lanka, हरिराक्षसाः monkeys and Rakshasas, युध्यन्ते at the end of war, तदाप्रभृति in the same way without exception, मानार्थम् means of proof, रावणस्य Ravana's, आज्ञया instruction, तत्ररणे there in war, ये those, राक्षसाः Rakshasas, कपिकुञ्जरैः Vanara leaders, हन्यन्ते killed, सर्वेएवतु all of them, हताःहताः then and there, सागरे ocean, क्षिप्यन्ते thrown.

From the beginning of the war in Lanka till the end without exception, all the Rakshasas were killed in war by the Vanara leaders then and there were thrown into the ocean by Ravana's instruction, not to have means of proof.