Power as to matters of evidence (National Assembly)
Section 89(1)(c) · 1999 Constitution (2004 edition)
What Constitution says
(c) summon any person in Nigeria to give evidence at any place or produce any document or other thing in his possession or under his control, and examine him as a witness and require him to produce any document or other thing in his possession or under his control, subject to all just exceptions; and
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 55–56. Original document
Release: draft-c8d50d87fae9. Source scope, review and corrections