Explanation of Bulugh al-Maram min Adillat al-Ahkam by Al-Hafiz Ibn Hajar. His explanation was by His Eminence Sheikh Abdul Aziz bin Baz, may Allah have mercy on him. He revealed the obscure hadiths and clarified the rulings that can be inferred from them. And His Eminence Sheikh Abdul Aziz bin Qasim and Dr. Omar Al-Hafyan took care of this book, combining its explanations and verifying its texts. So that the book would be in seventeen volumes.