Application of Constitution
Section 299(a) · 1999 Constitution (2004 edition)
What Constitution says
(a) all the legislative powers, the executive powers and the judicial powers vested in the House of Assembly, the Governor of a State and in the courts of a State shall, respectively, vest in the National Assembly, the President of the Federation and in the courts which by virtue of the foregoing provisions are courts established for the Federal Capital Territory, Abuja;
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 123. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections