Language:
كتاب الأشربة
74
Drinks
(11)
Chapter: Unripe-date drink and ripe-date drink should not be mixed if it is an intoxicant, and two cooked foods should not be put in one dish
(11)
باب مَنْ رَأَى أَنْ لاَ يَخْلِطَ الْبُسْرَ وَالتَّمْرَ إِذَا كَانَ مُسْكِرًا وَأَنْ لاَ يَجْعَلَ إِدَامَيْنِ فِي إِدَامٍ

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.‏
Reference : Sahih al-Bukhari 5600
In-book reference : Book 74, Hadith 26
USC-MSA web (English) reference : Vol. 7, Book 69, Hadith 505
  (deprecated numbering scheme)