Surah Al-Baqara · 2:230
سُورَةُ البَقَرَةِ
فَإِن طَلَّقَهَا فَلَا تَحِلُّ لَهُۥ مِنۢ بَعْدُ حَتَّىٰ تَنكِحَ زَوْجًا غَيْرَهُۥ ۗ فَإِن طَلَّقَهَا فَلَا جُنَاحَ عَلَيْهِمَآ أَن يَتَرَاجَعَآ إِن ظَنَّآ أَن يُقِيمَا حُدُودَ ٱللَّهِ ۗ وَتِلْكَ حُدُودُ ٱللَّهِ يُبَيِّنُهَا لِقَوْمٍۢ يَعْلَمُونَ ٢٣٠
And if he divorces her [finally], she shall thereafter not be lawful unto him unless she first takes another man for husband; then, if the latter divorces her, there shall be no sin upon either of the two if they return to one another-provided that both of them think that they will be able to keep within the bounds set by God: for these are the bounds of God which He makes clear unto people of [innate] knowledge.
Translation: Muhammad Asad