Smoking is Haram (prohibited) due to its many harmful effects and bad consequences. This is a well-known generally accepted fact. No one could doubt or refute this truth. Harms of smoking have been proved through evidence that doctors have agreed upon. Tobacco used for smoking is bad whereas Almighty Allah made lawful for his slaves all the good and useful and forbade what is bad and harmful.

[1] Fiqh of cigarette smoking and smokers
[2] Let Learn about Islamic Teaching on Smoking
[3] Ruling on smoking the argileh or shisha – and a discussion on its harmful effects
[4] The reason why smoking is haraam
[5] Reasons cigarette smoking is Haram
[6] Smoking is haraam, growing tobacco is haraam, and dealing in it is haraam