Osman Digna
Even after the Mahdi proclaimed a jihad, or holy war, against the Turkiyah, Khartoum dismissed him as a religious fanatic. The Egyptian government paid more attention when his religious zeal turned to denunciation of tax collectors. To avoid arrest, the Mahdi and a party of his followers, the Ansar, made a long march to Kurdufan, where he gained a large number of recruits, especially from the Baggara. From a refuge in the area, he wrote appeals to the sheikhs of the religious orders and won active support or assurances of neutrality from all except the pro-Egyptian Khatmiyyah. Merchants and Arab tribes that had depended on the slave trade responded as well, along with the Hadendoa Beja, who were rallied to the Mahdi by an Ansar captain, Osman Digna.