There is always more to say, but the question of what "Abu Bakr"'s expedition consisted of (as you'll find out by reading on, there's actually considerable doubt that he was the ruler involved in this venture), and what happened to it, has come up here a few times in the past, and you might like to review those earlier responses while you wait for fresh answers to your query:

Mansa Musa's father, Abu Bakr II, abdicated the throne of Mali because he was convinced he could find the edge of the Atlantic ocean. What contemporary knowledge fed this belief? Did he expect to find a 'new world'?, led by u/MansaMontezuma

Abu Bakr II set sail on a expedition from Mali. Is there any evidence of what happened to his fleet?, led by u/Commustar