Permanent incapacity of Governor or Deputy Governor
Section 189(2) · 1999 Constitution (2004 edition)
What Constitution says
(2) Where the medical panel certifies in its report that in its opinion the Governor or Deputy Governor is suffering from such infirmity of body or mind as renders him permanently incapable of discharging the functions of his office, a notice thereof signed by the Speaker of the House of Assembly shall be published in the Official Gazette of the Government of the State.
This is the 1999 Constitution as published in 2004. Later amendments aren't included yet, so a section may have changed since.
Original source
Official Gazette · CFRN 1999 official PDF · printed page 88–89. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections