The book (Lahin Al-Amaha) for Abe-Baker Mohamed Bin Al Hassan AL-Zubaidi (died-379) it is important book that deal with problems of un correct words in the Arabic Language in seventy shape and phonetic and also deal with mistakes, that some of the people misunderstood the meaning this book deal with more than (500) subject.Al Zubaidis work in this book was to follow the mistakes for writers and poets also public people and correct a lot of styles of pronunciation using sentences from the Quran and from the quotes of the prophet.The study search about many mistakes that collect by Al Zubaidi the work needed in this subject that I mention the subject as it was received in Al Zubidis book and also correct and definition then study and go back to the most important sources and dictionary, also another book in the language .The summary of this study to focus on how Al Zubidie agree with the thought of language scientists in their different sources depend on how many dictionary and explanation from Quran to closer the poetry and evidence on each subject .