The Office of the Supreme Leader

Rules of Fasting

  • Fasting Defenition
  • Types of Fasting
  • Conditions of Obligatory Fast
  • Ways to Establish the New Lunar Month
  • Fasting Intention
  • Fast Invalidators
    • Eating and Drinking
    • Sex
    • To Remain Junub until Morning Adhān
    • Not Knowing How to Make Ghusl or Its Being Obligatory
    • Masturbation
    • To Attribute a Lie to Allah, the Prophets and the Infallible
    • Not To Make Thick Dust Reach the Throat
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      Not To Make Thick Dust Reach the Throat

      By obligatory caution, a fasting person should not swallow the thick dust raised by sweeping a dusty ground. Swallowing smoke of cigarettes and other tobacco products invalidates fast by obligatory caution.

      Swallowing Dust by a Fasting Person
      148. I work in an iron ore mine and the nature of my work requires me to enter the mine daily. While working with mining equipment dust enters my mouth. This is my daily routine throughout the year. What is my duty? Is my fast valid?  
        A: Swallowing thick dust invalidates the fast by obligatory caution. Therefore, one must guard against it. However, the entering of dust into the mouth and the nose does not invalidate the fast unless it reaches the throat.
      Fast of Cigarette Addicts
      149. I am addicted to smoking. No matter how much I try not to be irritable in the blessed month of Ramadan, I can not abstain from conduct that disrupts the peace of my family and puts me into a nervous state. What is my duty in this situation?
        A: It is obligatory for you to fast in the month of Ramadan and it is not permissible for you to smoke while fasting. You should not treat others harshly without justification either.
      150. Can an addict to cigarettes, who should smoke some cigarettes per day, fast? Is his fast valid?
        A: By obligatory caution, one should avoid smoking tobacco products during fast. Compulsion does not remove obligation of fasting.
      Smoking/Using Drugs
      151. Please, give your opinion concerning smoking by a person who is fasting.
        A: By obligatory caution, one has to avoid taking in cigarette smoke and the like while fasting. The same rule is applied to drugs absorbed through nose or put under the tongue.

      To Use Nās while Fasting
      152.Some people use ‘nās,’ which is made up of tobacco and other constituents, and they put it under their tongues for a few minutes, then they spit it out. Does that void the fast?
        A: By obligatory caution, a fasting person should avoid all tobacco products as well as drugs absorbed through nose or (under the) tongue.

    • Immersing One's Head into Water
    • To Enema
    • Vomiting
    • Some Rules on Fast Invalidators
  • Medical Rules of Fasting
  • Rules for women
  • Zakat ul-Fitrah
  • Eid ul-Fitr Prayer
  • The Qaḍā’ Fast
  • Hired Fasts
  • Kaffārah of Fast
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