O Pen of the Most High! Say: O people of the world! We have enjoined upon you fasting during a brief period, and at its close have designated for you Naw-Rúz as a feast. Thus hath the Day-Star of Utterance shone forth above the horizon of the Book as decreed by Him Who is the Lord of the beginning and the end. Let the days in excess of the months be placed before the month of fasting. We have ordained that these, amid all nights and days, shall be the manifestations of the letter Há, and thus they have not been bounded by the limits of the year and its months. It behoveth the people of Bahá, throughout these days, to provide good cheer for themselves, their kindred and, beyond them, the poor and needy, and with joy and exultation to hail and glorify their Lord, to sing His praise and magnify His Name; and when they end -- these days of giving that precede the season of restraint -- let them enter upon the Fast. Thus hath it been ordained by Him Who is the Lord of all mankind. The traveller, the ailing, those who are with child or giving suck, are not bound by the Fast; they have been exempted by God as a token of His grace. He, verily, is the Almighty, the Most Generous.

The traveller, the ailing, those who are with child or giving suck, are not bound by the Fast; they have been exempted by God as a token of His grace.
Exemption from fasting is granted to those who are ill or of advanced age (see note 14), women in their courses (see note 20), travellers (see note 30) and to women who are pregnant and those who are nursing. This exemption is also extended to people who are engaged in heavy labour, who, at the same time, are advised “to show respect to the law of God and for the exalted station of the Fast” by eating “with frugality and in private” (Q&A 76). Shoghi Effendi has indicated that the types of work which would exempt people from the Fast will be defined by the Universal House of Justice.