Appointment of President and Judges of the Customary Court of Appeal of the Federal Capital Territory, Abuja
Section 266(4) · 1999 Constitution (2004 edition)
What Constitution says
(4) If the office of the President of the Customary Court of Appeal is vacant or if the person holding the office is for any reason unable to perform the functions of the office, then, until a person has been appointed to and assumed the functions of that office, or until the person holding the office has resumed those functions, the President shall appoint the next most senior Judge of the Customary Court of Appeal to perform those functions.
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 112–113. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections