Musnad Ahmad 266:14

Qutaybah ibn Sa'id narrated to us, Ya'qub ibn 'Abd al-Rahman narrated to us, from Abu Hazim, who said: I heard Sahl saying: Abu Usayd al-Sa'idi came and invited the Messenger of Allah, may Allah bless him and grant him peace, to his wedding feast. His wife was their servant on that day, and she was the bride. He said: Do you know what she gave the Messenger of Allah, may Allah bless him and grant him peace, to drink? She had soaked some dates from the night before in a stone bowl.