http://islamqa.info/en/ref/115761/marijuanaPraise be to Allaah.
Hasheesh of all types is haraam, whether it is marijuana or any other type.
Al-‘Allaamah Ibn Hajar al-Haythami said in al-Fataawa al-Fiqhiyyah (4/233), speaking of hasheeh:
The evidence for its being forbidden is the report narrated by Ahmad in his Musnad and by Abu Dawood in his Sunan with a saheeh isnaad from Umm Salamah (may Allaah be pleased with him) who said: The Messenger of Allaah (peace and blessings of Allaah be upon him) forbade all kinds of intoxicants and relaxants. The scholars said that relaxants are things that cause drowsiness and languor in the limbs. This hadeeth indicates that hasheesh in particular is haraam, because it intoxicates and relaxes, which is why those who consume it sleep a great deal. Al-Qaraafi and Ibn Taymiyah narrated that there is scholarly consensus that it is haraam and said: The one who regards it as permissible is a kaafir. He said: The only reason why the four imams (may Allaah have mercy on them) did not speak of it is that it was not known at their time, rather it only appeared at the end of the sixth century AH and the beginning of the seventh century when the Tatar state emerged. End quote.
Shaykh al-Islam Ibn Taymiyah (may Allaah have mercy on him) said in al-Fataawa al-Kubra (3/425): Consuming this hasheesh in solid form is haraam, and it is one of the most evil of haraam plants, whether a little of it is consumed or a lot. End quote.
Consuming intoxicants is haraam regardless of the way in which they are consumed.
Al-‘Allaamah Ibn Qaasim al-Shaafa’i said: What is meant by the drinker is the consumer, whether it is drunk or consumed otherwise, whether there is consensus on its being forbidden or there is a difference of opinion concerning that, and whether it is solid or liquid, cooked or raw. End quote.
Sharee’ah only forbids the consumption of drugs and intoxicants because of the great harm that they cause to the mind, soul, family and society.
http://islamqa.info/en/ref/66227
