Valmiki Ramayana 5.42.15

वासवस्य भवेद्दूतो दूतो वैश्रवणस्य वा ।प्रेषितो वा ऽपि रामेण सीतान्वेषणकाङ्क्षया॥

vāsavasya bhaveddūto dūto vaiśravaṇasya vā |preṣito vā 'pi rāmeṇa sītānveṣaṇakāṅkṣayā ||

Our plain-language meaning of this verse is waiting for scholar review.