Sunnis consider the two books of Sahih Bukhari and Sahih Muslim as correct from the beginning to the end, dealing with them like revelation. They have based all their principal beliefs on the basis of their content. The present work studies these two books and some of the traditions they contain, in order to make it clear that all the traditions that these two books contain are not authentic and that one cannot say that the traditions that have not appeared in these two books are not authentic.