Aisha, the wife of the president-elect, Muhammadu Buhari, has been seeking the legislation against child marriage.
Mrs Buhari emphasized this while speaking on the side-line of the Global Women Conference organised in Buenos Aires, Argentina, briefly after her presentation on the dangers women and girl child face every day.
Top discussions at the meeting were women empowerment and social inclusion, Channels TV reports.
According to her, the key to solving most of the problems women face is global legislation.
Aisha also asked for legislation against child marriage.
Hannatu Ngilari, Hajo Sani and Mariyya Zayyan, were part of the Nigerian delegation at the gathering and made their contribution.
Mrs Buhari pressed for legislation that would protect women and the girl child.
The Nigerian delegation said they selected a few ideas that would improve women empowerment scheme back in Nigeria.
The meeting came to a close with a call on government and international organisations to upsurge the participation of women in the decision making process.
The practice of early marriage in Nigeria is predominant. This can partly be clarified because Nigeria is very much divided on religious grounds. The South is mainly Christian and the North is principally Islam.
In Nigeria, the federal law prohibits the marriage of persons that are below eighteen. Meanwhile, the states in Nigeria that implements Sharia law, at least their own version of it, do not forbid child marriage.