Mahabharata 3.149.49

निग्रहे प्रग्रहे सम्यग्यदा राजा प्रवर्ततेतदा भवति लोकस्य मर्यादा सुव्यवस्थिता

nigrahe pragrahe samyagyadā rājā pravartatetadā bhavati lokasya maryādā suvyavasthitā

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