The Essence of Polity of Kāmandaka 2.36

Kāmandakīya Nītisāra 2.36

iti yasmādubhau lokau dhārayitvātmano nṛpaḥ
prajānāñca tataḥ samyagdaṇḍaṃ daṇḍīva dhārayet