Narrated Anas:

While I was serving Abu Talha. Abu Dujana and Abu Suhail bin Al-Baida' with a drink made from a mixture of unripe and ripe dates, alcoholic drinks, were made unlawful, whereupon I threw it away, and I was their butler and the youngest of them, and we used to consider that drink as an alcoholic drink in those days

حَدَّثَنَا مُسْلِمٌ، حَدَّثَنَا هِشَامٌ، حَدَّثَنَا قَتَادَةُ، عَنْ أَنَسٍ ـ رضى الله عنه ـ قَالَ إِنِّي لأَسْقِي أَبَا طَلْحَةَ وَأَبَا دُجَانَةَ وَسُهَيْلَ ابْنَ الْبَيْضَاءِ خَلِيطَ بُسْرٍ وَتَمْرٍ إِذْ حُرِّمَتِ الْخَمْرُ، فَقَذَفْتُهَا وَأَنَا سَاقِيهِمْ وَأَصْغَرُهُمْ، وَإِنَّا نَعُدُّهَا يَوْمَئِذٍ الْخَمْرَ. وَقَالَ عَمْرُو بْنُ الْحَارِثِ حَدَّثَنَا قَتَادَةُ سَمِعَ أَنَسًا.