Khamr is a Drink (Made) of Unripe Dates and Dried Dates Sunan an-Nasa'i 5544
Arabic hadith text
أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنْ شُعْبَةَ، عَنْ مُحَارِبِ بْنِ دِثَارٍ، عَنْ جَابِرٍ، - يَعْنِي ابْنَ عَبْدِ اللَّهِ - قَالَالْبُسْرُ وَالتَّمْرُ خَمْرٌ.
Translation
It was narrated that Jabir - meaning bin 'Abdullah - said
"Unripe dates and dried dates are Khamr."