Sahih al-Bukhari 67:111
Narrated Sahl bin Sa`d:
Abu Usaid As-Sa'di invited Allah's Messenger (ﷺ) to his wedding party and his wife who was the bride, served them on that day. Do you know what drink she gave Allah's Messenger (ﷺ)? She had soaked some dates for him (in water) overnight, and when he had finished his meal she gave him that drink (of soaked dates).
Reference
Sahih al-Bukhari 67:111
In-book reference
Book 67, Hadith 111
Arabic Text
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ أَبِي حَازِمٍ، عَنْ أَبِي حَازِمٍ، عَنْ سَهْلِ بْنِ سَعْدٍ، قَالَ دَعَا أَبُو أُسَيْدٍ السَّاعِدِيُّ رَسُولَ اللَّهِ صلى الله عليه وسلم فِي عُرْسِهِ، وَكَانَتِ امْرَأَتُهُ يَوْمَئِذٍ خَادِمَهُمْ وَهْىَ الْعَرُوسُ، قَالَ سَهْلٌ تَدْرُونَ مَا سَقَتْ رَسُولَ اللَّهِ صلى الله عليه وسلم أَنْقَعَتْ لَهُ تَمَرَاتٍ مِنَ اللَّيْلِ، فَلَمَّا أَكَلَ سَقَتْهُ إِيَّاهُ.