Appointment of Grand Kadi and Kadis of the Sharia Court of Appeal of a State
Section 276(3)(b) · 1999 Constitution (2004 edition)
What Constitution says
(b) he has attended and has obtained a recognised qualification in Islamic law from an institution approved by the National Judicial council and has held the qualification for a period of not less than ten years; and (i) he either has considerable experience in the practice of Islamic law, or (ii) he is a distinguished scholar of Islamic law.
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. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections