It is narrated from Sayyiduna Ali (may Allah be pleased with him) that he said: "A weighty group from the household of the Prophet (peace and blessings be upon him) will come among you. So woe to you because of them, and woe to you for (your treatment of) their rights."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Sa'id (may Allah have mercy on him) except his son Umar (may Allah have mercy on him), and no one from Umar (may Allah have mercy on him) except Sufyan (may Allah have mercy on him), and Ibn Abi al-Wazir (may Allah have mercy on him) is alone in narrating it."
It appears like this (Ibrahim bin Umar bin Abi al-Wazir) in the Dar al-Haramayn edition, whereas the correct name is Ibrahim bin Umar Abi al-Wazir (may Allah have mercy on him).