Expenditure Of A Person On Others In Islamic Law PHD (Doctor of Philosophy) thesis by researcher: Suad Nasser Hassan Bulbul. 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 1421 AH / 2001 AD to obtain a PHD degree in Islamic jurisprudence.