It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) forbade impure (khabith) medicine. This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it. Impure medicine means, without doubt, wine itself. And the two Shaykhs agreed upon this narration of Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him): "Indeed, Allah Almighty has not placed your cure in what He has made unlawful for you." And Muslim alone also recorded this hadith: "Indeed, it (wine) is not a medicine; rather, it is itself a disease."