History
Abu Ubaidah ibn al-Jarrah was one of Companions of the Islamic prophet Muhammad. Mostly known for being one of the "Ten Promised Paradise". He remained commander of a large section of the Rashidun Army during the time of the Rashid Caliph Umar and was on the list of Umar's appointed successors to the Caliphate. Abu Ubaidah was born in the year 583 CE in the house of 'Abdullah ibn al-Jarrah, a merchant by profession. Abu Ubaidah belonged to the Qurayshi clan of Banu al-Harith ibn Fihr. Before embracing Islam, he was considered to be one of the nobles of the Quraysh and was famous among the Quraysh of Mecca for his modesty and bravery. By 611, Muhammad was preaching the oneness of God to the people of Mecca. He began by inviting his closest companions and relatives in private to the way of Islam. He embraced Islam a day after Abu Bakr in the year 611 at the age of 28. Abu Ubaidah lived through the harsh experience that the Muslims went through in Mecca from beginning to end. With other early Muslims, he endured the insults and oppressions of the Quraysh. As the first migration to Abyssinia (Ethiopia) succeeded, this violence against the Muslims was very successful. In 623 CE, when Muhammad migrated from Mecca to Medina, Abu Ubaidah also migrated. When Muhammad arrived in Medina, he paired off each immigrant (Muhajir) with one of the residents of Medina (Ansari), joining Muhammad ibn Maslamah with Abu Ubaidah making them brothers in faith. The Muslims remained in peace in Medina for about a year before the Quraysh raised an army to attack Medina. In the year 624, Abu Ubaidah participated in the first major battle between the Muslims and the Quraysh of Mecca, at the Battle of Badr. In this battle, he fought his own father Abdullah ibn al-Jarrah, who was fighting alongside the army of Quraysh. Abu Ubaidah then later on attacked him and killed him.
In the year 625, he participated in the Battle of Uhud. In the second phase of the battle, when Khalid ibn al-Walid's cavalry attacked the Muslims from the rear, changing an Islamic victory into defeat, the bulk of the Muslim soldiers were routed from the battlefield, and few remained steadfast. Abu Ubaidah was one of them and he guarded Muhammad from the attacks of the Qurayshi soldiers. On that day, Abu Ubaidah lost two of his front teeth while trying to extract two links of Muhammad's armour that had penetrated into his cheeks.
Later in the year 627 he took part in the Battle of the Trench and also in the Invasion of Banu Qurayza. He was also made commander of a small expedition that set out to attack and destroy the tribes of Tha'libah and Anmar, who were plundering nearby villages.
In the year 628 he participated in Treaty of Hudaybiyyah and was made one of the witnesses over the pact. Later in the same year, he was a part of the Muslim campaign to Khaybar. In the year 630, when the Muslim army conquered Mecca, Abu Ubaidah was commanding one of the four divisions that entered the city from four different routes. Later that year, he participated in the Battle of Hunayn and the Siege of Ta'if. He was also part of the Tabuk campaign under the command of Muhammad himself. On their return from the Battle of Tabouk, a Christian delegation from Najran arrived in Medina and showed interest in Islam and asked Muhammad to send them a person to guide them in the matters of religion and in other tribal affairs according to Islamic laws, Abu Ubaidah was appointed by Muhammad to go with them. He was also sent as the tax collector ('aamil) to Bahrain by Muhammad. He was present in Mecca when Muhammad died in 632.
As soon as Abu Ubaidah moved to Jabyia he became afflicted with the plague. He then appointed Muadh ibn Jabal as his successor and ordered him to lead people in prayers; after the prayers Muadh went to him and, at that moment, his soul departed. He died in 639 C.E. and was buried at Jabiya. It has been narrated that his janaza was led by Muadh bin Jabal.
Christians of the Levant accepted Islam and were greatly inspired by Abu Ubaidah; all members of the two Christian tribes, Banu Tanookh and Banu Saleej, had accepted Islam after the conquest of the city of Qasreen. Moreover, there was much relief given by Abu Ubaidah to the non-Muslims living as his subjects in Syria.