SubhanAllah.
Ponder over this Hadith. This Hadith is one of those about which great imams say would be sufficient to cover half of your faith.
The Prophet (pbuh) has given a guideline concerning Syubhah matters. It is reported by Bukhari, Muslim, Abu Daud, Ibn Majah and Darimi, as follow:
الْحَلاَلُ بَيِّنٌ، وَالْحَرَامُ بَيِّنٌ، وَبَيْنَهُمَا مُشْتَبِهَاتٌ، لاَ يَعْلَمُهَا كَثِيرٌ مِنَ النَّاسِ. فَمَنِ اتَّقَى الشُّبُهَاتِ اسْتَبْرَأَ لِدِينِهِ وَعِرْضِهِ. وَمَنْ وَقَعَ فِي الشُّبُهَاتِ وَقَعَ فِي الْحَرَامِ...
Which means: What is Halal is clear. And what is Haram is also clear. And in between those two is a dubious area in which many people do not know about. So whoever distanced himself from it, he has acquitted himself (from blame). And those who fall into it, he has fallen into a state of Haram.
If you say smoking is not haram, you can not deny that it is in the dubious area. Those who have fallen into it are in a state of HARAM. And these are not my words but the words of the Prophet
