Mundaka 3.1.6
सत्यमेव जयते नानृतं सत्येन पन्था विततो देवयानः
Satyameva jayate nānṛtaṁ satyena panthā vitato devayānaḥ
Truth alone triumphs, not falsehood; by truth the divine path is spread out, by which the seers of fulfilled desire reach the supreme treasury of truth.