Hazrat Anas ibn Malik radiyallahu anhu reports, Rasoolullah sallallahu alaihe wasallam celebrated the waleemah of Safiyyah radiyallahu anha with dates and saweeq (sattu).
Saweeq (sattu) is a drink made of parched barley. Sayyidatina Safiyyah bint Huyay ibn Akhtab radiyallahu anha was from a Jewish family and from among the offsprings of Haroon alaihis salaam. In the year AH 7, after the Battle of Khaibar, she was taken as a slave.
Sayyidina Rasoolullah sallallahu alaihe wasallam freed, and married her. Sayyidina Rasoolullah sallallahu alaihe wasallam once said to her, Your grandfather (Haroon alaihis salaam) was a prophet. Your (great) uncle (Musa alaihis salaam) was a prophet, and your husband is a prophet.
The waleemah was made whilst on a journey. What was served in the waleemah? Different sayings are narrated in the ahaadith. In some, it is narrated that hays, which is a type of sweet dish, was served. In some, cheese is mentioned. It is apparent that they were on a journey and whatever was available, at breakfast time, in the possession of Sayyidina Rasoolullah sallallahu alaihe wasallam and his close associates, was included in the waleemah. (Waleemah is a feast normally held on the day after the wedding.)