Inhaling of Thick Dust
Question :

What is the ruling on the inhalation of thick dust (or similar substances) if it enters my throat?

Answer :

Inhaling thick dust does not invalidate the fast.

Washing the Head
Question :

If a person washes his head under tap water, does his fast become invalid?

Answer :

This does not invalidate the fast.

Listening to Backbiting
Question :

I live in a joint family, and this has caused many problems amongst the family, and this has led me to listening to backbiting and committing other sins. I wish to get away from this and shun it during the Holy Month of Ramadan so that my fast is not affected by it. Please give me advice on how to do so.

Answer :

We appreciate your concern for your religious responsibilities and your interest in not falling in committing sins. We wish to clarify that hearing the backbiting does not invalidate the fast nor does it invalidate the prayers. It is not even prohibited. What is prohibited is reacting to the backbiting and becoming a part of it and supporting it.
You are encouraged to be busy with reciting and studying the Holy Quran and supplications, offering prayers and giving in charity, and maintaining your relations to your kin during this month.
If you are forced to be in a situation that necessitates you to listen to the backbiting, you can suggest to them to stop this in a calm and nice way. May Allah guide them to stop committing such sins.

Sitting around Smokers
Question :

Does sitting around people who are smoking whilst you are fasting invalidate the fast, considering that the smoke is inhaled, whether intentional or not?

Answer :

No, it does not invalidate the fast.

Smoking Cigarette
Question :

Does smoking cigarettes invalidate one’s fast?

Answer :

Yes, it does, based on compulsory precaution.