سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 5564b
The Book of Drinks
Mentioning the Reason Why These Mixtures are Forbidden, Which is That One of Them is Mor
أَخْبَرَنَا سُوَيْدٌ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنْ سَعِيدِ بْنِ أَبِي عَرُوبَةَ، قَالَ قَتَادَةُ كَانَ أَنَسٌ يَأْمُرُ بِالتَّذْنُوبِ فَيُقْرَضُ .
Qatadah said: "Anas used to tell us to cut off the extra bits."
Sunan an-Nasa'i, 5564bHasan (Darussalam)