Question about Ibn Ishq

Ibn Ishaq (704-767 AD), was a Arab biographer of the Prophet Muhammad (peace be on him) whose book, in a recession by Ibn Hisham, is one of the most important sources on the Prophet’s life. Ibn Ishaq was the grandson of an Arab prisoner captured by Muslim troops in Iraq and brought to Medina, where he was freed after accepting Islam. Ibn Ishaq’s father and two uncles collected and transmitted information about the Prophet in Medina, and Ibn Ishaq soon became an authority on the Prophet’s campaigns. He studied in Alexandria and subsequently moved to Iraq, where he lived in the Jazirah and Hirah regions, and finally in Baghdad. Ibn Ishaq is most famous for his work, “The Life of Muhammad”, which is the biography of the Prophet Muhammad (peace be on him). Ibn Hisham, who died some 60 years after Ibn Ishaq, made the revision the biography of the Prophet Muhammad (SAW).