Jurisdiction (State Sharia Court of Appeal)
Section 277(2)(b) · 1999 Constitution (2004 edition)
What Constitution says
(b) where all the parties to the proceedings are muslims, any question of Islamic personal Law regarding a marriage, including the validity or dissolution of that marriage, or regarding family relationship, a founding or the guarding 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 115–116. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections