Valmiki Ramayana Aranya Kanda Sarga 45 Shloka 3
Original Shlokaतं क्षिप्रमभिधाव त्वं भ्रातरं शरणैषिणम्।।3.45.3।। रक्षसां वशमापन्नं सिंहानामिव गोवृषम्।
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सिंहानाम् of the lions, गोवृषमिव like a bull, रक्षसाम् of demons, वशम् grip, आपन्नम् been under it, शरणैषिणम् seeking help, तं भ्रातरम् that brother, क्षिप्रम् quickly, त्वम् you, अभिधाव run.
Like a bull caught by lions, your brother is seeking help caught by demons. You should run at once to your brother.