Zadhan Abu Umar narrates: I was present with Sayyiduna Ali (may Allah be pleased with him) at al-Rahbah when he adjured the people, asking who had been present with the Prophet (peace and blessings be upon him) on the Day of Ghadir Khumm when the Prophet (peace and blessings be upon him) said what he said. The narrator says: Thirteen men stood up and bore witness that on the Day of Ghadir Khumm the Prophet (peace and blessings be upon him) said: "Whoever I am the mawla of, Ali is also his mawla."
Ahmad recorded it. Its chain contains narrators whom I do not know.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 14630
Hadith Gradingمحدثین:إسنادہ ضعیف
Hadith Takhrij«اخرجه الطبراني فى المعجم الصغير (641)»