Sahih Muslim 5158
صحيح مسلم#5158SahihAbdullah b. Abu Qatada, on the authority of his father, reported Allah's Apostle (ﷺ) forbidding the preparation of the mixture of ripe dates and unripe dates, and the mixture of grapes and dates, and that of nearly ripe dates and fresh dates but the Prophet said:Prepare the Nabidh from each one of them separately
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 36:32