Excerpts .....

Harm To The Human Body

No one can deny the harm of smoking to the human body. The medical evidence for this is well established and overwhelming. 

The hazards of smoking to the health are hard to enumerate. Cancer, tuberculosis, heart attacks, asthma, coughing, premature birth, infertility, infections in the digestive system, high blood pressure, nervousness, mouth and teeth diseases, etc., are among the many health hazards that have been strongly linked to smoking.

These diseases may not appear all at once, however a smoker is most likely to suffer from some of them, and his suffering increases as he grows older. Furthermore, statistics have established that smokers' age is, on the average, ten years less than other people's.

This is sufficient to prohibit smoking. Islam prohibits any action that causes harm to oneself or to other people. Allaah Subhaanahu wa Ta`aala says (interpretation of the meaning):

"Do not kill yourselves, Allaah is indeed merciful to you." (An-Nisaa' 4-29)

"Do not cast yourselves, with your own hands, into destruction." (Al-Baqarah 2:195)

And the Messenger of Allaah, Sall Allaahu`alayhi wa sallam says:

"No harm may be inflicted on oneself or others." (Ahmad and Ibn Majah from Ibn Abbas and Ubadah)

The feet of a human being will not depart, on the day of Judgement, from his standing before his Lord, until he is questioned about five things: his lifetime - how did he pass it, his youth - how did he used it, his wealth - where did he earn it and how did he spend it, and how did he follow what he knew. (At-Tirmithi and others from Ibn Mas'ood and Aboo Barzah)

Whoever consumes poison, killing himself with it, then he will he consuming his poison in the hellfire, and he will abide in it permanently and eternally. (Saheeh Al-Bukhaari and Muslim from Jaabir).