(71) باب حَقِّ إِجَابَةِ الْوَلِيمَةِ وَالدَّعْوَةِ
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 5176
In-book reference: Book 67, Hadith 111
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 62, Hadith 105