Hassan, H.H. and Mambakr, H.A.trans. 2024. The moral contents in the wills of the Rightly Guided Caliphs and their princes - the Caliph of Abu Bakr Al-Siddiq (11-13 AH / 632-634 AD) as a model- a historical and analytical study. Twejer Journal. 7, 1 (Jul. 2024), 512–534. DOI:https://doi.org/10.31918/twejer.2471.18.