Musa was still alive in 1337, as he says Musa sent a delegation to Abu al-Hasan after his conquest of Tlemcen in 1337. The time between the conquest of Tlemcen and arrival of Jata's delegation is too short to accommodate the reign lengths Ibn Khaldun attributes to Magha, Sulayman, and Qasa. It is possible that it was Maghan, rather than Musa, who sent the delegation in 1337, but this nonetheless leaves Sulayman's reign at least a year shorter than reported by Ibn Khaldun. Ibn Khaldun reports that Magha ruled for four years; if Musa died in 1337, this would place the beginning of Sulayman's reign in 1341, though it is possible that some of the four years attributed to Magha refer to him serving as viceroy during his father's hajj. Conrad and Hunwick have both listed 1341 as the beginning of Sulayman's reign. Legacy The reigns of Musa and Sulayman have been considered the apex of Malian power. Ibn Battuta remarked positively on the security of the Mali Empire during Sulayman's reign, noting that there was no need to worry about thieves. However, Sulayman's legacy has suffered from unfavorable comparisons to his more renowned brother, and Ibn Battuta described him as "a miserly king from whom no great donation is to be expected." The end of Sulayman's reign has been considered the beginning of the decline of the Mali Empire. Ibn Battuta's visit to the Mali Empire during Sulayman's reign, recorded by Ibn Juzayy in the Tuhfat an-Nuzzar, is one of the most valued primary sources for understanding the Mali Empire at its height, though doubts have been raised about its reliability as a firsthand account. The historian Al-Umari also wrote his account of the Mali Empire during Sulayman's reign. Leo Africanus incorrectly attributed the founding of Timbuktu to Mansa Sulayman; he may have conflated Sulayman with his brother Musa, whose reign is associated with some building projects in Timbuktu, which had already existed for some time before being incorporated into the Mali Empire. Niane identified Sulayman with Mansa Sama, a descendant of Sunjata said in oral tradition to have built the Kamabolon, a shrine in Kangaba. Niane suggested that Sulayman built the Kamabolon after going on the hajj. However, Sulayman is not mentioned in Ibn Khaldun's list of mansas of Mali who went on the hajj, nor does Ibn Battuta mention Sulayman as having done so. Mansa Sama is