Mahabharata 15.11.7

यदा स्वपक्षो बलवान्परपक्षस्तथाबलःविगृह्य शत्रून्कौन्तेय यायात्क्षितिपतिस्तदायदा स्वपक्षोऽबलवांस्तदा संधिं समाश्रयेत्

yadā svapakṣo balavānparapakṣastathābalaḥvigṛhya śatrūnkaunteya yāyātkṣitipatistadāyadā svapakṣo'balavāṃstadā saṃdhiṃ samāśrayet

Our plain-language meaning of this verse is waiting for scholar review.