Originally Posted by beleiver
All scholars agree that cannabis is haram. It is a psychoactive drug. Yes it can be wonderful for people who, for example, have severe epilepsy (and in such cases this becomes halal for them because it gives them a chance at a normal life according to SOME scholars; there is disagreement), however, you and most people do not have severe epilepsy and it remains haram. It's simply recreational. Just because Allah created this plant doesn't make it halal. Allah created male and female, which are haram for each other. He created pigs, which is haram for consumption. He allows fruit to ferment and become wine which is haram to drink. I can go on and on, but just because something merely exists and has some benefit does not mean it is halal. In the Quran in regards to wine/intoxicants allah states "...in them is great sin and [yet, some] benefit for people. But their sin is greater than their benefit.
If someone has an ailment, they should exhaust all halal forms of healing, including du'a, salaah, Quran, honey, exercise etc. before even thinking about turning towards something haram. You have to be in a state where cannabis is a necessity for you to have a normal life rather than just an "option." Most people who use cannabis are committing more than one haram. 1) They are in a state of intoxication which invalidates their salaah. So now they are committing a huge haram by not performing salaah in a state of purity. 2) They are breaking the law of the land considering it is illegal in most countries, 3) They are intoxicating themselves with which is deemed haram in the deen, and 4) They are advocating for a haram substance publicly without shame.
Allah and the prophet pbuh gave us the tools we need when we have any type of pain or sickness because the healing, while it comes from medications, is ultimately from Allah's will and mercy that allows that medication to heal us.