Dr Ouf delves into the pivotal role of Hadith transmission in shaping the theological and identity frameworks of Sunni and Shia traditions. By comparing the works of Imam Al-Bukhari and Al-Kulayni, this research fosters dialogue and understanding between these two major Islamic schools of thought. Written in German, Dr Ouf’s research supports the growing field of Islamic theology in Europe, addressing key challenges in fostering understanding and collaboration.