ハウサ諸王国
He started studying the Qur'an at a very early age, he later traveled far and studied under several scholars including Dan Fodio. After completing his studies, he started preaching within and outside Katsina. In 1804, Shehu Usman Dan Fodio declared Jihad against the Habe rulers of Hausa Kingdoms. Among the first people to answer the Shehu's call and declare their support was Mallam Ummaru.