Senatorial districts and Federal constituencies
Section 71 · 1999 Constitution (2004 edition)
What Constitution says
Subject to the provisions of section 72 of this Constitution, the Independent National Electoral Commission shall - (a) divide each State of the Federation into three Senatorial districts for purposes of elections to the Senate; and (b) subject to the provisions of section 49 of this Constitution, divide the Federation into three hundred and sixty Federal constituencies for purposes of elections to the House of Representatives.
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 50. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections