Valmiki Ramayana Yuddha Kanda Sarga 4 Shloka 34
Original Shlokaसुषेणो जाम्बवांश्चैव ऋक्षैर्बहुभिरावृतौ । सुग्रीवं पुरतः कृत्वा जघनं सम्ररक्षतुः ।।6.4.34।।
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सुषेणः Sushena, जाम्बवांश्चैव and also Jambavan, बहुभिः and many, ऋक्षैः Rsha's army, आवृताः surrounding, सुग्रीवम् Sugriva, पुरतः western side, कृत्वा placing, जघनम् the army of vanaras, सम्ररक्षतुः guarding
Sushena, and Jambavan surrounded by the army of Rshaba were guarding by placing on the western side.