وَإِذَا طَلَّقْتُمُ النِّسَاءَ فَبَلَغْنَ أَجَلَهُنَّ فَلَا تَعْضُلُوهُنَّ أَن يَنكِحْنَ أَزْوَاجَهُنَّ إِذَا تَرَاضَوْا بَيْنَهُم بِالْمَعْرُوفِ ۗ ذَٰلِكَ يُوعَظُ بِهِ مَن كَانَ مِنكُمْ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الْآخِرِ ۗ ذَٰلِكُمْ أَزْكَىٰ لَكُمْ وَأَطْهَرُ ۗ وَاللَّهُ يَعْلَمُ وَأَنتُمْ لَا تَعْلَمُونَ (232)
(2:232) When you have divorced your wives absolutely and they have completed their prescribed term, then you should not prevent them from marrying their prospective husbands, if they mutually agree to marry each other in a lawful way. *256 You are enjoined not to commit such an offence,if you sincerely believe in Allah and the Last Day. It is most decent and pure for you to desist from this; Allah knows and you do not know.
*256). This is a directive to the relatives of the divorced woman. When a woman is divorced by her husband and he fails to revoke the divorce before the expiry of the waiting period, the relatives of the woman should not try to prevent the couple from re-marrying if they agree to do so. This verse may also be interpreted to mean that if a divorced woman wants to contract marriage with someone other than her former husband after the expiry of the waiting period, the former husband should not obstruct this marriage by making malicious propaganda against the woman he has forsaken.
That is an admonition to every one of you who believes in Allah and the Last Day; that is a cleaner and purer way for you. For Allah knows whereas you do not know.