Sahih Bukhari
Wedlock, Marriage (Nikaah)
Volume: 007 / Book Number: 062 / Hadith Number: 112
Narrated Sahl bin Sad:
Abu Usaid As-Sa'idi invited the Prophet to his wedding party and his wife served him on that day, and she was the bride. She said (or Sahl said), "Do you know what she soaked for Allah's Apostle? She soaked some dates for him (in water) in a drinking bowl overnight."