The Collector Of The Rules Of The Religion Of Islam By Ali Bin Muhammad Abdullah Al-Najrani, Alive In The Year 796 Ah - Study And Investigation PHD (Doctor of Philosophy) thesis by researcher: Abdulkarim Muhammad Abdullah Hassan Al-Wazaf This thesis was supervised by Professor Dr. Abdul Karim Zidan, and it was discussed in Republic of Yemen/ Sana’a University/ College of Arts/ Department of Islamic Studies in the year 1432AH / 2012 AD to obtain a PHD degree in Comparative Jurisprudence.