al-Azami(2003年),第29页 al-Azami, M Mustafa, Studies in Hadith Methodology and Literature, Islamic Book Trust, 2003, OCLC 847857354(英语)
Juynboll(1969年),第51-52页 Juynboll, G. H. A., The Authenticity of The Tradition Literature: Discussions in Modern Egypt, E.J. Brill, 1969, OCLC 478890(英语)
Sodiq(2011年),第153-154页 Sodiq, Yushau, Insider's Guide to Islam, Trafford On Demand Publishing, 2011, OCLC 1345569084(英语)
al-Azami(2003年),第69页 al-Azami, M Mustafa, Studies in Hadith Methodology and Literature, Islamic Book Trust, 2003, OCLC 847857354(英语)