Sunan Ibn Majah, Book 30, Hadith 3523 (In-Book) ⓘ
It was narrated from ‘Abdullah bin Abu Qatadah, from his father, that he heard the Messenger of Allah say: “Do not combine fresh dates and unripe dates, or raisins and dates; rather make Nabidh with each one of them on its own.”*
حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا الْوَلِيدُ بْنُ مُسْلِمٍ، حَدَّثَنَا الأَوْزَاعِيُّ، عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي قَتَادَةَ، عَنْ أَبِيهِ، أَنَّهُ سَمِعَ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ يَقُولُ " لاَ تَجْمَعُوا بَيْنَ الرُّطَبِ وَالزَّهْوِ وَلاَ بَيْنَ الزَّبِيبِ وَالتَّمْرِ وَانْبِذُوا كُلَّ وَاحِدٍ مِنْهُمَا عَلَى حِدَتِهِ " .
also referenced under: Hadith 3397 (Reference) & Volume 4, Book 30, Hadith 3397 (DarusSalam)