In Surah Muhammad (47:15), does "خَمۡرٍ" refer to the same intoxicating alcohol that is prohibited in this life? If it does, how can something harmful and forbidden be allowed in Jannah? If not, what is its specific meaning in this context?
The word Khamr خمر in Quran does not mean the intoxicant alcohol which is known and prohibited in this life. Khamr of this life is filth and Najis which causes dangerous effects, while Khamr of Paradise completely different as it will be لَذّةٍ للشاربين delicious for the drinkers. It us a completely different drink which does not have any thing similar to the intoxicating alcohol.
Wassalam.