Kaura Duna is a mythic figure.
The Battle of Badar was the Prophet's first battle, that of Tabuka the last. The great-grandfather of the Tabuka was Kal'ana, who challenged God. He raised a large army and had them shoot into the skies. God ordered an angel to drop to the earth limbs of a giant human body to deceive Kal'ana. In the end, a gigantic human head plummeted down, and King Kal'ana declared victory. Many in heaven asked God for permission to go to earth to punish Kal'ana; God allowed two mosquitos to descend. They entered his ears and for seven years caused him intense pain. Satan went to the palace to heal the king's head, but he did so as a joke, and the king of Tabuka, the large city, died. Years later, a Muslim merchant in Medina told of the mighty city of Tabuka, ruled by heathens. The Prophet was urged to go to battle against the king of Tabuka. A spy informed the king of Tabuka, Kaura Duna, of the pending invasion. In the meantime, the Prophet was choosing a husband for his daughter, Nana Fadima. Ali wanted to marry her, but a wealthy man employed an old woman to sow deceit, and Ali was given the impression that Fadima preferred that man. He was intensely disappointed. He met an orphan who had accidentally spilled his milk on the ground, and Ali squeezed the earth to recover the milk, with the result that the earth swore that when Ali died it would make his grave uncomfortable. Ali was so angry about his situation that he lost his sight, so that when the battle with Tabuka approached he had to stay home. The Prophet's army went to battle, and, because of the arrogance of Kaura Duna, won the first battle. But the Prophet's armies were concerned about the absence of Ali, the Sword of God. Ali recovered his sight, a divine horse was prepared for him, and he roared into battle with such exuberance that the Prophet had to keep him under control. Ali destroyed the enemy, then faced the notorious giant of a man, Kaura Dunhu-Duna, who, defeated, informed the king. Now the king himself had to face Ali. His five-hundred-year-old mother gave him magical potions that she had inherited, giving him fifteen monstrous heads on his shoulder. When Ali struck one head, fifteen others emerged in that position, and so the king developed, in the battle with Ali, scores of heads. But Ali, in the heat of the struggle, purposefully paused briefly, and the king turned around with his real human head to see what was the matter. Ali at once cut off that head with his famous sword, and all the other heads fell off as well, and the king of Tabuka was dead. Tabuka was vanquished.