We read what the knowledgeable wrote in achieving the texts, and we benefit from it many benefits, and we lecture about that, and we have a long and complex dialogue with postgraduate students in the curricula of this art in detail and in detail; Theoretically and practically, we may choose a verified text in one of our classes to make it - from a critical point of view - an application material for the vocabulary of what we are in. And the twentieth part of the eyes of history - by Ibn Shaker Al-Ketbi, with an investigation: Dr. Faisal Al-Samer and Nabila Abdel-Moneim, in a second chapter and the twenty-first part of it, with their investigation in a third chapter, and almost the appearances and investigation - as a science and an art - in directing these books, and we found many of Methods of handling the preserved text, including what is accepted and what is accepted once, and what is provided for this or that reason, and the outcome of the study has been prepared for us material, we did not see that we need to write it, in appreciation of the big difference between what is fit to be said in a lecture, and what can be written To the general reader, but after a while we got pregnant to write a lamb, he asked a question from the students: How is the critical reading of a verified text, we want an example?