He adopted the title of Ameer-ul-Momineen for the first time?

Posted by

(a) Hazrat Abu Babar (RA)
(b) Hazrat Umar (RA)
(c) Waleed bin Abdil Malik (RA)
(d) Hazrat Ali (RA)

See also  Name the foster mother(s) of the Holy Prophet (SAW)?