Valmiki Ramayana Yuddha Kanda Sarga 125 Shloka 9
Original Shlokaहीनंरतिगुणैस्सर्वैरभिहन्तारमाहवे । सेनात्यजतिसम्विग्नानृपतिंतंनरेश्वरा ।।6.125.9।।
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नरेश्वरा ruler of men, सर्वैः all, रतिगुणैः devoid of virtues, हीनम् low, आहवे in battle, हन्तारम् destructor, तंनृपतिम् that king, सेना army, त्यजति will desert
"O Ruler of men, all the army will desert a king who is devoid of virtues, lowly and who is a destructor in the battlefield."