Sahih al-Bukhari Book 74, Hadith 29
Allah's Messenger (ﷺ) was presented a bowl of milk and a bowl of wine on the night he was taken on a
journey (Al-Mi'raj).
The Prophet (ﷺ) forbade the mixing of ripe and unripe dates and also the mixing of dates and raisins (for preparing a syrup) but the syrup of each kind of fruit should be prepared separately. ( One may have such drinks as long as it is fresh )
The people doubted whether Allah's Messenger (ﷺ) was fasting or the Day of `Arafat or not. So I sent a cup containing milk to him and he drank it.