Valmiki Ramayana Sundara Kanda Sarga 27 Shloka 39
Original Shlokaअपगच्छत नश्यध्वं सीतामाप्नोति राघवः।।5.27.39।। घातयेत्परमामर्षी युष्मान्सार्थं हि राक्षसैः।
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अपगच्छत go away from here, नश्यध्वम् you will be destroyed, राघवः Raghava, सीताम् Sita, आप्नोति he will secure, परमामर्षी a very angry man, राक्षसैः सार्थम् along with the demons totally, युष्मान् you, घातयेत् will kill.
"(Therefore) go away from here. You will be totally destroyed by Rama who will secure his wife and will kill all of you along with others in great anger.