Valmiki Ramayana Yuddha Kanda Sarga 35 Shloka 11
Original Shlokaयस्यदेवर्षयस्सर्वेगन्धर्वाश्चजयैषिणः ।।6.35.11।। विरोथंमागमस्तेनसन्धिस्तेतेनरोचताम् ।
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सर्वे all, देवर्षय: celestial sages गन्धर्वाश्च Gandharvas, यस्य their, जयैषिणः wishing victory, तेन therefore, विरोधम् enmity, मागमः do not, ते to you, तेन therefore, सन्धिः alliance, रोचताम् desirable.
All the celestial sages and Gandharvas are wishing him victory. Therefore, do not have enmity. Making an alliance with him is desirable for you.