Some daredevil gunmen launched an attack on the American owned Radisson Blu hotel on Friday morning taking 140 guests and 30 staff hostage in Bamako.
Dangote left the hotel 24 hours before the attack, it was learnt.
There were fears earlier that the president of the Dangote Group of Companies may have been trapped in the attack.
Aljazeera English correspondent in Nigeria Yvonne Ndege in her Twitter handle said she had a direct conversation with Dangote who confirmed he was in Nigeria, safe..