Valmiki Ramayana Sundara Kanda Sarga 42 Shloka 15
Original Shlokaवासवस्य भवेद्दूतो दूतो वैश्रवणस्य वा। प्रेषितो वापि रामेण सीतान्वेषणकाङ्क्षया।।5.42.15।।
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वासवस्य Vasava's, दूतः envoy, वैश्रवणस्य Vaisravana's, दूतो वा is he an envoy, सीतान्वेषणकाङ्क्षया or one who has come to trace Sita, रामेण by Rama, प्रेषितो वापि or sent, भवेत् may be.
"He may be an envoy of Indra or Kubera or of Rama sent with an intent to trace Sita.