اللَّهُمَّ أَلِّفْ بَيْنَ قُلُوبِنَا، وَأَصْلِحْ ذَاتَ بَيْنِنَا
Allahumma allif bayna qulubina, wa aslih dhata baynina
O Allah, unis nos cœurs et réconcilie nos différends.
Recite for harmony between spouses and family members
This dua asks Allah to create love and harmony between family members and resolve conflicts.