Al-Amiri، A. b. H. b. S. (2022). The Position of Sa’d Bin ‘Ubadah Regarding the Pledge of Allegiance to the Caliphs as-Siddtq and Al-Faruq "May Allah be Pleased with Them All": A Creedal Study. مجلة الدراسات العقدية، مج15, ع30 ، 625 - 634. مسترجع من http://search.mandumah.com/Record/1316061
Al-Amiri، Adil bin Hijji bin Salim. "The Position of Sa’d Bin ‘Ubadah Regarding the Pledge of Allegiance to the Caliphs As-Siddtq and Al-Faruq "May Allah Be Pleased With Them All": A Creedal Study." مجلة الدراسات العقدية مج15, ع30 (2022): 625 - 634. مسترجع من http://search.mandumah.com/Record/1316061