It is narrated from Sayyiduna Uhban bin Sayfi al-Ghifari (may Allah be pleased with him) that he said: I heard the Messenger of Allah (peace and blessings be upon him) say: "When you see two men of my Ummah fighting each other over rule and power, then at that time make a sword of wood and fight with it."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Salih bin Rustum except Yunus bin Bukayr, and Ubayd bin Ya'ish is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 5521
Hadith Takhrij«أخرجه الطبراني فى «الكبير» برقم: 865»