The All-Glorious, the Most Great
Praise be to Him Who sent down the commandment as He willed. Verily, He ordains whatsoever He desires. O My loved ones! Observe that which you have been commanded in the Book. Fasting has been decreed for you in the month of loftiness. Fast for the sake of your Lord, the All-Powerful, the Most High, and abstain from sunrise to sundown. Thus hath the Beloved commanded you on behalf of God, the Almighty, the Unrestrained. None may overstep the bounds and precepts of God and none may follow their own idle fancies.
Blessed are those who observe My commandments for love for My beauty and woe to them who are ignorant of the dawning-place of the divine command in the days of their Lord, the All-Powerful, the All-Compelling. Those who have circled ’round the throne for a number of years have fasted. Thus hath your Ancient Lord informed you that you may perform that which you have been commanded to observe, unless you are travelling or sick. This is My grace to My servants.
O people! Cling to that which shall profit you in this world and the next and follow not those who wander in the wilderness of error. Thank your Lord that you have been mentioned before the throne and that the gaze of thy Lord, the All-Powerful, Beneficent, has turned toward you.
Baha’u'llah, in La’ali’ al-hikma 1:28. (My thanks to Omid Ghaemmaghami for the reference.) The portion from “Praise be to Him…” to “…the days of their Lord, the All-Powerful, the All-Compelling” is translated (differently) in a compilation on obligatory prayer and fasting (xiii).