Yahya related to me from Malik from a reliable source from Bukayribn Abdullah ibn al-Ashajj from Abd ar-Rahman ibn al-Hubab al-Ansarifrom Abu Qatada al-Ansari that the Messenger of Allah, may Allah blesshim and grant him peace, forbade making nabidh from dates and raisinstogether, and nearly ripe dates and fresh dates together.Malik said, "That is the way of doing things among us in which thepeople of knowledge in our city continue. It is disapproved of becausethe Messenger of Allah, may Allah bless him and grant him peace,forbade it."
USC-MSA web (English) reference: Book 42, Hadith 8
Arabic reference: Book 42, Hadith 1547