Commissioners of State Government
Section 192(3) · 1999 Constitution (2004 edition)
What Constitution says
(3) Where a member of a House of Assembly or of the National Assembly is appointed as Commissioner of the Government of a State, he shall be deemed to have resigned his membership of the House of Assembly or of the National Assembly on his taking the Oath of office as Commissioner.
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 89–90. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections