Sayyiduna Ali (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) forbade us to be harsh with one of the two opposing parties and not the other.
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains al-Haytham bin Ghusn, and I have not found anyone who mentions him; the rest of its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأحكام / 7016
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«أخرجه المعجم الأوسط للطبراني برقم: 3934»