Declaration of assets and liabilities; oaths of Special Advisers
Section 152 · 1999 Constitution (2004 edition)
What Constitution says
A person appointed as Special Adviser under section 151 of this Constitution shall not begin to perform the functions of his office until he has declared his assets and liabilities as prescribed in this Constitution and has subsequently taken and subscribed the Oath of Allegiance and oath of office prescribed in the Seventh Schedule to this Constitution. B - Establishment of certain Federal Executive Bodies
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 75. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections