The Mali leader known for a famous hajj is Mansa Kankan Musa.
The Malian leader known for a famous hajj (pilgrimage to Mecca) is Mansa Kankan Musa. To find this answer, you can conduct a quick internet search using keywords such as "famous hajj Malian leader" or "Malian leader who performed hajj." This will lead you to various sources and references that discuss Mansa Kankan Musa and his famous hajj, providing you with the answer you are looking for.