The book of reform is the mistake of Abu Ubaid in Gharib Al-Hadith-Al-Dinouri is one of the valuable books for researchers and professors in the branches of the Hadith of Hadith; Where the book of reforming the mistake of Abu Ubaid in Gharib Al-Hadith-Al-Dinouri is part of the scope of the sciences of the hadith and the branches close to the science of jurisprudence, biography and other branches of the Prophet's guidance.