The Law Code of Nārada m1.25

m1.25

tatra śiṣṭaṃ chalaṃ rājā marṣayed dharmasādhanaḥ /
bhūtam eva prapadyeta dharmamūlā yataḥ śriyaḥ //

There a king who acts justly must neglect error when it is brought forward, and seek truth alone, because prosperity depends on (the practice of) duty.