إِنَّمَا الْمُؤْمِنُونَ إِخْوَةٌ فَأَصْلِحُوا بَيْنَ أَخَوَيْكُمْ وَاتَّقُوا اللَّهَ لَعَلَّكُمْ تُرْحَمُونَ
Unity brings mercy
The Believers are but a single Brotherhood : so make peace and reconciliation between your two ( contending) brothers; and fear Allah, that ye may receive Mercy.
Surah Hujarat, verse 10
