Consensus In Islamic Law And Its Impact On The Unification Of The Nation PHD (Doctor of Philosophy) thesis by researcher: Sami Rashid Hammadi. 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 1420 AH / 2000 AD to obtain a PHD degree in Fundamentals of Jurisprudence.