Bulghatul Wusul Ila 'Ilm al-Usool is a Summary of the Book "al-Bulbul" which was originally written by ash-Shaykh 'Abdul Qawiyy at-Tufee. It was a summary of the book Rawadtun Naadhir. Then ash-Shaykh al-Qaadi 'Izz ad-Deen bin Nasrullah summarized the summary and named it "Bulghatul Wusul Ila 'Ilm al-Usool". This book consist of 159 pages and is printed on yellow paper.