A:
Any form of smoking is Haram (prohibited), for it is an unlawful and evil thing. Allah (Exalted be He) says when describing the Prophet (peace be upon him):
...he allows them as lawful At-Tayyibât (i.e. all good and lawful as regards things, deeds, beliefs, persons, foods), and prohibits them as unlawful Al-Khabâ’ith (i.e. all evil and unlawful as regards things, deeds, beliefs, persons and foods)
Smoking is harmful to the heart, lungs, and general human health. It can also cause some malignant diseases, such as cancer; and doctors have warned against its hazardous effect on health. Generally, Shari`ah (Islamic law) has always warned against anything that harms man.
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.