The Messenger of Allah said: “There should be neither harming, nor reciprocating harm.” [An Authentic Hadeeth reported by Sheykh al-Albani in Saheeh al-Jaami # 7517]
Many people encounter breathing problems when they accidentally inhale smoke from someone’s pipe or cigarette, especially people suffering from bronchial asthma. It is also proved medically that non-smokers are harmed when in the company of smokers (i.e. passive smoking). The smoking of parents has been linked to respiratory problems in children and crib death. It is also the cause of many devastating fires.
