 His sons followed in his footsteps after his death, the most famous of whom were Muhammad al-Hassan al-Mirghani, Gaafar as-Sadig al-Mirghani, Abdullahi al-Mahjoub al-Mirghani, Hashim al-Mirghani and Sirr al-Khatim al-Mirghani.Al-Khatim's religious journey began in Mecca from whence he travelled to Tarim in Yemen and then to Somalia by sea and to Massawa on the Red Sea coast where he travelled inland into the Ethiopian hinterland before returning to Mecca.On this trip tens of thousands of people embraced Islam including entire clans and tribes.