Valmiki Ramayana Yuddha Kanda Sarga 32 Shloka 40
Original Shlokaअन्तर्थानंतुतच्छीर्षंतच्चकार्मुकमुत्तमम् । जगामरावणस्यैवनिर्याणसमनन्तरम् ।।6.32.40।।
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रावणस्य Ravana's, निर्याणसमनन्तरमेव as soon as he departed, तत् शीर्षम् that head, उत्तमम् excellent, तत् that, कार्मुकंच and the bow, अन्तर्थानम् vanished, जागाम went.
As soon as Ravana departed, that head and the excellent bow vanished from there.