اللَّهُمَّ أَلِّفْ بَيْنَ قُلُوبِنَا، وَأَصْلِحْ ذَاتَ بَيْنِنَا، وَاهْدِنَا سُبُلَ السَّلَامِ
Transliteration
Allahumma allif bayna qulubina, wa aslih dhata baynina, wahdina subulas-salam
Translation
O Allah, join our hearts, mend our relations, and guide us to the paths of peace.
Reference: Abu Dawud 969