Resignations
Section 306(6) · 1999 Constitution (2004 edition)
What Constitution says
(6) The notice of resignation of the President of the Senate and of the Speaker of the House of Representatives shall in each case be addressed to the Clerk of the National Assembly, and the notice of resignation of the Speaker of a House of Assembly shall be addressed to the Clerk of the House of Assembly of the State.
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 125–126. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections