Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bayhaqi:17458ʿAlī b. Aḥmad b. ʿAbdān > Aḥmad b. ʿUbayd al-Ṣaffār > Isḥāq b. al-Ḥasan al-Ḥarbī > ʿAffān > Abān > Yaḥyá b. Abū Kathīr > ʿAbdullāh b. Abū Qatādah from his father

[Machine] It was narrated that the Prophet ﷺ prohibited the mixture of butter and dates, as well as the mixture of raisins and dates, and the mixture of cucumber and dates. He said, "Eat each one separately." (Narrated by Ibn Abbas, reported by Abu Salama bin Abdul Rahman, reported by Abu Qatadah)  

البيهقي:١٧٤٥٨أَخْبَرَنَا عَلِيُّ بْنُ أَحْمَدَ بْنِ عَبْدَانَ أنبأ أَحْمَدُ بْنُ عُبَيْدٍ الصَّفَّارُ ثنا إِسْحَاقُ بْنُ الْحَسَنِ الْحَرْبِيُّ ثنا عَفَّانُ ثنا أَبَانٌ ثنا يَحْيَى بْنُ أَبِي كَثِيرٍ عَنْ عَبْدِ اللهِ بْنِ أَبِي قَتَادَةَ عَنْ أَبِيهِ

أَنَّ النَّبِيَّ ﷺ نَهَى عَنْ خَلِيطِ الْبُسْرِ وَالتَّمْرِ وَعَنْ خَلِيطِ الزَّبِيبِ وَالتَّمْرِ وَعَنْ خَلِيطِ الزَّهْوِ وَالرُّطَبِ وَقَالَ انْتَبِذُوا كُلَّ وَاحِدٍ عَلَى حِدَتِهِ 17459 قَالَ وَحَدَّثَنِي أَبُو سَلَمَةَ بْنُ عَبْدِ الرَّحْمَنِ عَنْ أَبِي قَتَادَةَ عَنِ النَّبِيِّ ﷺ بِهَذَا  

رَوَاهُ مُسْلِمٌ فِي الصَّحِيحِ عَنْ أَبِي بَكْرِ بْنِ إِسْحَاقَ عَنْ عَفَّانَ وَأَخْرَجَهُ أَيْضًا مِنْ حَدِيثِ أَبِي سَعِيدٍ الْخُدْرِيِّ وَأَبِي هُرَيْرَةَ وَابْنِ عَبَّاسٍ وَابْنِ عُمَرَ عَنِ النَّبِيِّ ﷺ وَرَضِيَ عَنْهُمْ