Ashem Vohu is one of the most important Zoroastrian prayer:
Ashem vohû vahishtem astî. Ushtâ astî
Ushtâ ahmâi hyat ashâi vahishtâishem.
Translated Text:
Righteousness is the best good.
It is radiant happiness.
Radiant happiness comes to the person to whom
righteousness is for the sake of the best righteousness alone.