Muwatta Malik 1543
موطأ مالك#1543SahihYahya related to me from Malik from Zayd ibn Aslam from Ata ibn Yasar that the Messenger of Allah, may Allah bless him and grant him peace, forbade preparing nabidh from nearly ripe dates and fresh dates together, and from dates and raisins together
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Salim al-HilaliSahih Lighairihi
In-book reference: 42:7