In April 656, a delegation of between 400 and 700 Egyptians arrived in Medina under the ostensible purpose of performing the
Umrah (lesser pilgrimage). This group was led by Abd al-Rahman ibn Udays, Sudan ibn Humran, and Amr ibn al-Hamiq. Muhammad ibn Abi Bakr had arrived in Medina ahead of the main rebel force to coordinate their efforts. The rebels initially camped at Dhu Khushub, a night's journey north of the city, on May 1, 656 (1 Dhu al-Qa'da 35 AH). Following initial negotiations, the rebels began to withdraw from Medina after Uthman promised to address their grievances and replace the governor of Egypt,
Abd Allah ibn Sa'd, with Muhammad ibn Abi Bakr. However, three days into their return journey, the rebels intercepted a messenger carrying a letter bearing the Caliph's official seal. The letter, addressed to the governor of Egypt, contained orders to execute Muhammad ibn Abi Bakr and other rebel leaders upon their arrival. The rebels returned to Medina and besieged Uthman's residence. Uthman denied any knowledge of the letter, swearing he had neither written nor ordered it. While
Hugh Kennedy suggests the Caliph may have been responsible,
Wilferd Madelung notes that contemporaries like
Ali and
Muhammad ibn Maslama suspected Uthman's secretary,
Marwan ibn al-Hakam, of forging the document using the Caliph's seal. During the final assault on the palace, Muhammad ibn Abi Bakr entered the Caliph's chambers through a neighboring building. According to historical accounts, he was the first to "lay violent hands" upon Uthman, seizing him by his beard. However, after a brief exchange in which Uthman reminded him of his father's respect for the Caliph, Muhammad reportedly felt ashamed and withdrew from the room, leaving the final fatal blows to be dealt by others. == Governorship of Egypt ==