Qatari Emir Sheikh Hamad bin Khalifa al-Thani has received a written message from Senegalese President Abdullah Wade containing an invitation to him to attend the 11th Islamic conference due to be held in Dakar next March. The message was delivered to Qatari Heir Apparent Sheikh Tamim bin Hamad al-Thani by Karim Wade, the envoy of the Senegalese President, during a meeting here today.