Assalamualaikum,
I would like to know if it is permissible in Islam to involve in a business which buys and sells tobacco products like cigarettes, Hookah, e-cigarettes, etc, I would really appreciate if you can shed some light on this subject based on Shariah requirement and Islamic Law.
Jazakallah
الجواب وباللہ التوفیق
If the intoxicating or impure ingredients are mixed in them then their buying or selling is impermissible and if such ingredients are mixed which are extremely detrimental to the body then it is مکروہ تحریمی Makrooh Tehrimi (close to Haram) otherwise it is مکروہ تنزیہی Makrooh e Tanzihi i.e., permissible. However, it is better to stay away even in the third scenario.
واللہ اعلم بالصواب