Mahabharata 3.61.89
विमुक्तं सर्वपापेभ्यः सर्वरत्नसमन्वितम्तदेव नगरश्रेष्ठं प्रशासन्तमरिंदमम्
vimuktaṃ sarvapāpebhyaḥ sarvaratnasamanvitamtadeva nagaraśreṣṭhaṃ praśāsantamariṃdamam
Our plain-language meaning of this verse is waiting for scholar review.