Al -Hafiz called his explanation of Sahih Al -Bukhari, in which he started (Fath Al -Bari) and then he was not able to complete it, but he reached the book of funerals with the loss of some of the hadiths that are also explained, as if he was able to complete it, Imam Al -Shawkani said, "No immigration after the conquest" and however The rest of our hands contained us a lot of the science of the an indispensable predecessor. Al -Hafiz Ibn Abd al -Hadi - may God have mercy on him - said on the authority of Fath Al -Bari: It is one of the wonders of eternity. And if he completed it was from the wonders "[3]. Ibn Rajab was keen in this book- as usual- to explain the hadith with the hadith and the effects of the predecessor, taking care of the chain of narrators and the liberated jurisprudence, which makes the souls reassuring to what is in the folds of the book more than other explanations.