During the month of Jumaadal Oola of the year 2 A.H., Rasulullah (sallallahu ‘alaihi wasallam) set out with two hundred Muhaajireen in the direction of Ushayrah to attack the caravan of the Quraish. Ushayrah is the name of a place close to Yambu’. Rasulullah (sallallahu ‘alaihi wasallam) appointed Hazrat Abu Salamah bin Abdil Asad (radhiyallahu ‘anhu) as his vicegerent over Madinah Munawwarah in his absence.