Sunan an-Nasa'i
It was narrated that : Anas would not leave any dates that had become ripe but he would remove them from his Fadikh.
أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنْ حُمَيْدٍ، عَنْ أَنَسٍ، أَنَّهُ كَانَ لاَ يَدَعُ شَيْئًا قَدْ أَرْطَبَ إِلاَّ عَزَلَهُ عَنْ فَضِيخِهِ .
Grade: Hasan (Darussalam)
Reference