Sunan an-Nasa'i, Hadith 5544 ⓘ
It was narrated that Jabir - meaning bin 'Abdullah - said: "Unripe dates and dried dates are Khamr."
أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنْ شُعْبَةَ، عَنْ مُحَارِبِ بْنِ دِثَارٍ، عَنْ جَابِرٍ، - يَعْنِي ابْنَ عَبْدِ اللَّهِ - قَالَ الْبُسْرُ وَالتَّمْرُ خَمْرٌ.
also referenced under: Book 51, Hadith 5 (In-Book) & Volume 6, Book 51, Hadith 5546 (DarusSalam)