not coming back at least move to any highland with a less humid environment and Abu Ubayda moved to Jabiya. Another reason why Abu Ubaydah did not leave Syria is because Muhammad once ordered that if a state is being hit by a plague, none from the state should escape and none from outside the state shall enter it (quarantine). Death As soon as Abu Ubayda moved to Jabiya he became afflicted with the plague. As death hung over him, he spoke to his army: 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, Abu Ubayda died. Muadh got up and said to the people: Abu Ubayda left no descendants. Character His appearance was striking, slim and tall and his face was bright and he had a sparse beard. It was pleasing to look at him and refreshing to meet him. He was extremely courteous and humble and quite shy. Yet in a tough situation he would become strikingly serious and alert. Several early Islamic sources and the hadith compilations of Sahih Bukhari and Sahih Muslim all note that Abu Ubayda was held by Muhammad to have been the umma's (Muslim community's) "man of trust". Other Islamic sources refer to him as (). According to Gibb, Abu Ubayda "was clearly a man whose personality impressed his contemporaries, but he is presented by later tradition in a rather colourless fashion". Abdullah ibn Umar once said about him: He chose to live a simple way of life, opting for the most modest of garments when compared to some of the other sahaba (companions of Muhammad). When, during the conquest of Jerusalem, Caliph Umar had come to Syria, he was met by Khalid ibn al-Walid and Yazid bin abu Sufyan; Caliph Umar dismounted from his camel and threw sand at them while admonishing them that "it has not been even a year since you have come out of the hunger and hard life of Arabia and you have forgotten all the simplicity when you saw the glamour of Syria's Emperors?" Both men were incidentally wearing better garments then they were previously accustomed; Khalid ibn al-Walid noted that beneath their clothes they were still sufficiently armed, indicating they were still accustomed to the practical ways of hard desert life, bringing some relief to the Caliph.