Sunan an-Nasai Book 51, Hadith 5541

أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، - يَعْنِي ابْنَ الْمُبَارَكِ - عَنْ سُلَيْمَانَ التَّيْمِيِّ، أَنَّ أَنَسَ بْنَ مَالِكٍ، أَخْبَرَهُمْ قَالَ بَيْنَا أَنَا قَائِمٌ، عَلَى الْحَىِّ وَأَنَا أَصْغَرُهُمْ، سِنًّا عَلَى عُمُومَتِي إِذْ جَاءَ رَجُلٌ فَقَالَ إِنَّهَا قَدْ حُرِّمَتِ الْخَمْرُ‏.‏ وَأَنَا قَائِمٌ عَلَيْهِمْ أَسْقِيهِمْ مِنْ فَضِيخٍ لَهُمْ فَقَالُوا اكْفَأْهَا‏.‏ فَكَفَأْتُهَا فَقُلْتُ لأَنَسٍ مَا هُوَ قَالَ الْبُسْرُ وَالتَّمْرُ‏.‏ قَالَ أَبُو بَكْرِ بْنُ أَنَسٍ كَانَتْ خَمْرُهُمْ يَوْمَئِذٍ فَلَمْ يُنْكِرْ أَنَسٌ‏.‏

Anas bin Malik said:"While I was taking care of a group of people, including my paternal uncles, and I was the youngest of them, a man came and said: 'Khamr has been forbidden.' I was taking care of them, and was pouring Fadikh (date-wine) for them. They said: 'Pour it away.' So I poured it away." I (the narrator) said to Anas: "What is that?" He said: "Unripe dates and dried dates." Abu Bakr bin Anas said: "That was their wine in those days." And Anas did not deny that