Sahih Muslim , Book 36, Hadith 28 (In-Book) ⓘ
Abu Qatada, on the authority of his father, reported Allah's Messenger having said this: Do not prepare Nabidh by mixing nearly ripe dates and fresh dates together, and do not prepare Nabidh by mixing grapes and dates together, but prepare Nabidh from each (one of them) separately.
حَدَّثَنَا يَحْيَى بْنُ أَيُّوبَ، حَدَّثَنَا ابْنُ عُلَيَّةَ، أَخْبَرَنَا هِشَامٌ الدَّسْتَوَائِيُّ، عَنْ يَحْيَى بْنِ، أَبِي كَثِيرٍ عَنْ عَبْدِ اللَّهِ بْنِ أَبِي قَتَادَةَ، عَنْ أَبِيهِ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " لاَ تَنْتَبِذُوا الزَّهْوَ وَالرُّطَبَ جَمِيعًا وَلاَ تَنْتَبِذُوا الزَّبِيبَ وَالتَّمْرَ جَمِيعًا وَانْتَبِذُوا كُلَّ وَاحِدٍ مِنْهُمَا عَلَى حِدَتِهِ " .
also referenced under: Hadith 1988 (Reference) & Book 23, Hadith 4904 (USC-MSA)