Nigeria

(1) The legislative powers of the Federal Republic of Nigeria shall be vested in a National Assembly for the Federation, which shall consist of a Senate and a House of Representatives.
(2) The National Assembly shall have power to make laws for the peace, order and good government of the Federation or any part thereof with respect to any matter included in the Exclusive Legislative List set out in Part I of the Second Schedule to this Constitution.
… (Sec. 4)

There shall be a National Assembly for the Federation which shall consist of a Senate and a House of Representatives. (Sec. 47)

(1) Subject to the provisions of section 66 of this Constitution, a person shall be qualified for election as a member of:
(a) the Senate, if he is a citizen of Nigeria and has attained the age of 35 years; and
(b) the House of Representatives, if he is a citizen of Nigeria and has attained the age of 25 years;
(2) A person shall be qualified for election under subsection (1) of this section if:
(a) he has been educated up to at least School Certificate level or its equivalent; and
(b) he is a member of a political party and is sponsored by that party. (Sec. 65)

(1) Subject to the provisions of this Constitution, every Senatorial district or Federal constituency established in accordance with the provisions of this Part of this Chapter⁹ shall return a member who shall be directly elected to the Senate or the House of Representatives in such manner as may be prescribed by an act of the National Assembly.
… (Sec. 77)