The Book of Drinks
51/13. Chapter:
Mentioning the Reason Why These Mixtures are Forbidden, Which is That One of Them is Mor
Sunan an-Nasai
أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنْ حُمَيْدٍ، عَنْ أَنَسٍ، أَنَّهُ كَانَ لاَ يَدَعُ شَيْئًا قَدْ أَرْطَبَ إِلاَّ عَزَلَهُ عَنْ فَضِيخِهِ .
It was narrated that : Anas would not leave any dates that had become ripe but he would remove them from his Fadikh.
Reference : Sunan an-Nasa'i 5565In-book reference : Book 51, Hadith 27English translation : Vol. 6, Book 51, Hadith 5568