Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) was sitting among a group of the Muhajirun and the Ansar, with Sayyiduna Ali bin Abi Talib (may Allah be pleased with him) on his (peace and blessings be upon him) left and Sayyiduna Abbas (may Allah be pleased with him) on his right, when suddenly an argument broke out between Sayyiduna Abbas (may Allah be pleased with him) and a man of the Ansar, and the Ansari spoke harshly to Sayyiduna Abbas (may Allah be pleased with him). The Messenger of Allah (peace and blessings be upon him) took hold of the hand of Sayyiduna Abbas (may Allah be pleased with him) and the hand of Sayyiduna Ali (may Allah be pleased with him) and said: "Soon a group will emerge from the loins of this one (Abbas) who will fill the earth with tyranny and oppression, and soon a group will emerge from the loins of this one (Ali) who will fill the earth with justice and fairness. When you see that, hold fast to the young man of Tamim, for he will come from the east, and he will be the bearer of the banner of the Mahdi."
Imam al-Tabarani (may Allah have mercy on him) said: "This hadith was narrated from Abdullah bin Umar only by Ibn Lahi'ah; Kathir bin Ja'far is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب العين / 4130
Hadith Gradingمحدثین:منكر
Hadith Takhrij«قال الهيثمي: رواه الطبراني في الأوسط وفيه ابن لهيعة وفيه لين ولكن الحديث منكر ه والله أعلم «مجمع الزوائد ومنبع الفوائد، ج 7، ص 318»»