It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) appointed Sayyiduna Abdullah bin Umm Maktum (may Allah be pleased with him) as his deputy in Madinah Munawwarah on two occasions. I saw him on the day of Qadisiyyah holding a black flag.
Hadith Referenceالفتح الربانی / أبواب فى فضائل بعض الصحابة الكرام / 11859
Hadith Gradingمحدثین:صحیح
Hadith Takhrij«اسناده حسن، اخرجه ابوداود: 595 ، 2931 ، (انظر مسند أحمد ترقيم الرسالة: 12344 ترقیم بيت الأفكار الدولية: 12369»