Citizenship at birth through a Nigerian parent or grandparent rules
A person born outside Nigeria either of whose parents is a citizen of Nigeria is a citizen by birth. Birth in Nigeria after independence with a citizen parent or grandparent also creates citizenship by birth under section 25. Birth in Nigeria alone to two foreign parents without qualifying lineage is not general jus soli.
Sources: Nigeria Constitution 1999 โ Chapter III Citizenship (published text) ยท Constitute Project โ Constitution of Nigeria 1999 (as amended)