وَحَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ زَيْدِ بْنِ أَسْلَمَ، عَنْ عَطَاءِ بْنِ يَسَارٍ، ‏.‏ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى أَنْ يُنْبَذَ الْبُسْرُ وَالرُّطَبُ جَمِيعًا وَالتَّمْرُ وَالزَّبِيبُ جَمِيعًا ‏.‏

Yahya related to me from Malik from Zayd ibn Aslam from Ata ibnYasar that the Messenger of Allah, may Allah bless him and grant himpeace, forbade preparing nabidh from nearly ripe dates and fresh datestogether, and from dates and raisins together. Translation Not Available

Book Ref: Muwatta Imam Malik Book 42 Hadith 1546
Web Ref:  Muwatta Imam Malik Book 42 Hadith 7