0417 GMT June 20, 2018
The Saudi Arabian Football Federation (SAFF) said Fahad al-Mirdasi confessed to offering to fix the King's Cup final between Al Ittihad and Al Faisaly, BBC Sport reported.
According to the SAFF, 32-year-old Mirdasi contacted an Al Ittihad official, who handed the messages over.
FIFA has requested more information.
"FIFA notes the information that referee Fahad al-Mirdasi has allegedly been banned from all football-related activities by the Saudi Arabian Football Federation (SAFF)," the world governing body told BBC Sport.
The SAFF added that Mirdasi, who has been a FIFA referee since 2011, admitted soliciting the corrupt payment after being taken into police custody.
British former Premier League referee Mark Clattenburg – who became Saudi Arabia's head of referees in February 2017 – replaced Mirdasi for Saturday's King's Cup final, which Al Ittihad won 3-1 after extra time.