سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 5558
The Book of Drinks
Mixing Al-Busr and Dried Dates (At-Tamr)
أَخْبَرَنَا أَحْمَدُ بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنَا يَزِيدُ، قَالَ أَنْبَأَنَا حُمَيْدٌ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، قَالَ الْبُسْرُ وَحْدَهُ حَرَامٌ وَمَعَ التَّمْرِ حَرَامٌ.
It was narrated that Ibn 'Abbas said: "Al-Busr on their own are unlawful and with dried dates they are unlawful."
Sunan an-Nasa'i, 5558Sahih (Darussalam)