The man who established the Muslim city of Qairawān was

The man who established the Muslim city of Qairawān was ‘Uqbah b. Nāfi'. ‘Uqbah b. Nāfi' was a companion of the Islamic prophet Muhammad, and was sent to North Africa to spread Islam. He led the Muslim conquest of North Africa and founded the city of Qairawān in what is now Tunisia. Qairawān became an important center of Islamic learning and culture, and it remains an important city in Tunisia to this day. It does not imply that the man who established the Muslim city of Qairawān was Ubaidah b. Sa'ad, Irshād b. Waqās, or Mūsa b. Naufāi.