Valmiki Ramayana Kishkindha Kanda Sarga 36 Shloka 13
Original Shlokaसर्वथा हि मम भ्राता सनाथो वानरेश्वर। त्वया नाथेन सुग्रीव प्रश्रितेन विशेषतः।।4.36.13।।
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वानरेश्वर O king of monkeys, सुग्रीव Sugriva, नाथेन by a king, विशेषतः specially, प्रश्रितेन by a courteous one, त्वया you, मम my, भ्राता brother, सर्वथा in all ways, सनाथः हि has a guardian.
'O Sugriva, king of monkeys when you are extending due courtesy to my brother,he has a guardian in you by all means.