The Book of Drinks
36/5. Chapter:
It is disliked to make Nabidh by mixing dried dates and raisins
Sahih Muslim
حَدَّثَنَا شَيْبَانُ بْنُ فَرُّوخَ، حَدَّثَنَا جَرِيرُ بْنُ حَازِمٍ، سَمِعْتُ عَطَاءَ بْنَ أَبِي رَبَاحٍ، حَدَّثَنَا جَابِرُ بْنُ عَبْدِ اللَّهِ الأَنْصَارِيُّ، أَنَّ النَّبِيَّ صلى الله عليه وسلم نَهَى أَنْ يُخْلَطَ الزَّبِيبُ وَالتَّمْرُ وَالْبُسْرُ وَالتَّمْرُ .
Jabir b. 'Abdullah al-Ansari reported that Allah's Messenger (may peace upon him) prohibited the mixing of grapes and fresh dates, and dry dates and fresh dates.
Reference : Sahih Muslim 1986aIn-book reference : Book 36, Hadith 19USC-MSA web (English) reference : Book 23, Hadith 4896