Fighting for the Cause of Allah (Jihaad)
56/164. Chapter:
What quarrels and differences are hated in the war
وَقَالَ اللَّهُ تَعَالَى: {وَلاَ تَنَازَعُوا فَتَفْشَلُوا وَتَذْهَبَ رِيحُكُمْ}. قَالَ قَتَادَةُ الرِّيحُ الْحَرْبُ.And Allah said: '…And do not dispute (with one another) lest you lose courage and your strength departs…' (V.8:46)
Sahih Bukhari
حَدَّثَنَا يَحْيَى، حَدَّثَنَا وَكِيعٌ، عَنْ شُعْبَةَ، عَنْ سَعِيدِ بْنِ أَبِي بُرْدَةَ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، أَنَّ النَّبِيَّ صلى الله عليه وسلم بَعَثَ مُعَاذًا وَأَبَا مُوسَى إِلَى الْيَمَنِ قَالَ " يَسِّرَا وَلاَ تُعَسِّرَا، وَبَشِّرَا وَلاَ تُنَفِّرَا، وَتَطَاوَعَا وَلاَ تَخْتَلِفَا ".
Narrated Abu Burda: That his father said, "The Prophet (ﷺ) sent Mu`adh and Abu Musa to Yemen telling them. 'Treat the people with ease and don't be hard on them; give them glad tidings and don't fill them with aversion; and love each other, and don't differ."
Reference : Sahih al-Bukhari 3038In-book reference : Book 56, Hadith 244USC-MSA web (English) reference : Vol. 4, Book 52, Hadith 275