Mahabharata 12.136.154

अद्यैव हि रिपुर्भूत्वा पुनरद्यैव सौहृदम्पुनश्च रिपुरद्यैव युक्तीनां पश्य चापलम्

adyaiva hi ripurbhūtvā punaradyaiva sauhṛdampunaśca ripuradyaiva yuktīnāṃ paśya cāpalam

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