"Early on, ... the badge of Mahdism became the jibbeh, a white cotton smock worn by the Sudanese poor. As the jibbeh became torn, so it was patched, and the use of patches also proclaimed adherence to the Ansar. After the fall of El Obeid, the Mahdi prescribed a uniform for his followers. This consisted of the jibbeh, white trousers (siraval), sandal[s] (sayidan), a girdle of plaited straw (karaba), and a white turban (imma) and skull-cap (taggia). The imma was wrapped around the taggia in a distinctive way, which was in itself a badge of Mahdism: the loose end was left dangling behind the left ear, while the successive folds formed an inverted 'V' above the forehead. A string of beads, sibba, completed the outfit."