The man with a turban who appeared to be a Sikh was grilled by a Sikh who became outraged after seeing him smoking a cigarette. The Sikh man was angry and yelled at the turbaned man and expressed his outrage verbally.
Smoking is strictly prohibited in Sikhi and those with Turbans are absolutely not allowed to smoke. If one chooses smoking over Sikhi than they must abandon their Sikh appearance.
There are a number of religious prohibitions in Sikhism.
Cutting hair: Cutting or removing hair from any body part is strictly forbidden for Sikhs by the Sikh Temple governing board and not the Sikh religious texts.
Intoxication: Consumption of alcohol, drugs, tobacco, and other intoxicants is not allowed. Intoxicants are strictly forbidden for a Sikh. Etc.
Smoking and Sikhi via Sikhs.Org
Smoking and drug taking is banned in Sikhism and using tobacco is listed in the Sikh Rehat Maryada (Code of Conduct ) as one of the four transgression (Kurahits). The Sikh Rehat Maryada was drafted by an expert committee of eminent Sikh scholars. Many western friends of mine are surprised that Sikhism explicitly forbids the use of tobacco and this may be because there is no prohibition of tobacco use in other religions.
It may appear strange to people of other religions as to why Sikhism has such a Anti-smoking stance, the reason is that smoking is recorded as being forbidden by all the Sikh writers who were contemporaries of the 10th Guru. According to these writers Guru Gobind Singh was once riding with his Sikhs when he suddenly stopped his horse and after dismounting proceeded to rip out a wild tobacco plant.
The Sikhs asked why the Guru had ripped the plant out and the Guru replied that the Sikhs should avoid alcohol as it destroys a generation but tobacco destroys several generations.
The Guru then forbade his Sikhs to ever use tobacco. Early European writers who came across the Sikhs in the 1780’s were perplexed as to why tobacco was forbidden for the Sikhs as tobacco was being widely used by both the British and the Indians at that time. Of all the Nations that the Europeans came into contact with the Sikhs were the only one who had a religious injection against tobacco.