Valmiki Ramayana Yuddha Kanda Sarga 37 Shloka 32
Original Shlokaवानरेन्द्रश्चबलवानृक्षराजश्चवीर्यवान् ।।6.37.32।। राक्षसेन्द्रानुजश्चैवगुलोभवतुमध्यम: ।
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बलवान् mighty strong, वानरेन्द्रश्च Vanara king, वीर्यवान् valorous, ऋक्षराजश्च Rksharaja, Jambavan, राक्षसेन्द्रानुजश्चैव and Ravana's brother, मध्यम: middle, गुलो of city, भवतु will remain.
"Mighty strong Sugriva, valorous Jambavan, the ruler of Vanaras and Vibheeshana, brother of Ravana will remain at the middle of Lanka and fight."