<prompt> Qedela umusho olandelayo:  <response>: ukufika kwamaByzantine kwavula inkathi entsha yobukhazikhazi. Ngo-647, emasimini ngaphambi komuzi kwakuyindawo yempi enkulu phakathi kwamaByzantine namaBerber kaGregory the Patrician kanye nombusi waseRashidun Caliphate waseGibhithe, u-Abdullah ibn Saad. Impi yaseSufetula yaphela ngokunqoba okunqunyiwe kwamaSulumane, okwazamazamisa ukulawula kwamaByzantium kule ndawo futhi kwaphawula ukuqala kokunqotshwa kwamaSulumane eNyakatho Afrika. 