Muhammad was not a historical figure . The hadiths were written 200 to 300 years after Muhammad's supposed death. The oldest biography is that of Ibn Ishaq, written 150 years after his death, but the original and surviving version is that of Ibn Hisham, written 200 years later, in the annals of Thomas The priest mentioned the Arabs of Muhammad, but did not mention Muhammad as a person. The pseudo-Sepeius was not an eyewitness but rather narrated accounts from arab himself . Thirdly, the Khuzestan Chronicle stated that Muhammad was the leader of the Arabs at the time of the Islamic conquest of Persia in 636, which is when The historical accounts of Muhammad are contradictory. Fourthly, the Maronite chronicle states that Mu'awiya refused to accept Muhammad's throne, implying that Muhammad was a title, not a name , it's a title attributed to Christ and used by the Arabs for their conquests. Other sources merely represent transmitted narrations not eyewitness narrations . .Muhammad was not a historical figure, but an Arab invention.