Hashmat Usmani
I can see you have a lot of passion on this. Smoking is declared haram, it depends how you apply the affects of smoking on your health and the damage to society that will enable you to find the appropriate hadith where it fits.
The rule of haram and halal that you describe above is an oversimplification by the way. There is another rule in that … the act that is required for a fard to be undertaken then itself becomes a fard. Also, the act that causes a haram to be undertaken is also haram.
As I said the ruling for smoking to be makrooh is out-dated based on up-to-date information on smoking and it’s dangers. In fact there have been a variety of fatwas prohibiting smoking or tobacco in general.
Tobacco fatwa - Wikipedia, the free encyclopedia
Here is a balanced article showing both sides of the argument … which is better you decide?
Tobacco Use, Halal or Haram? Paan and Tobacco Cessation Digest
And here is a detailed article
Aside to all this in the UK it is now illegal to smoke in public confined spaces and by law the warning on the packets must read …
“Smoking Kills”
I am not making haram halal nor halal haram … but we should be careful not to over simplify the rules just taking the basic meaning of:
“everything is halal except when specifically said to be haram” is a dangerous statement to make to those people who are literalistic.
For example: Hitting ones own father on the head with a slipper is halal? But you and I know that it is not because that act is disrespect of ones parents so there is some categorisation work that has to be done before we start defining the halal/haram status.
It is also not right to push everything in to makrooh and mustahab either in the absence of explicit mentions in Qur’an and hadith. There is a a whole different set of conditions for those classifications.
Peace bro