Jurisdiction (Sharia Court of Appeal of the FCT)
Section 262(2)(b) · 1999 Constitution (2004 edition)
What Constitution says
(b) where all the parties to the proceeding are Muslims, any question of Islamic personal law regarding a marriage, including the validity or dissolution of that marriage, or regarding family relationship, a foundling or the guardianship of an infant;
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. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections