His ability to stand up to the Umayyad clan may have been an important factor in his success, and may point to why his brother Yazid was ineffective.
Kemampuannya menyatukan garis keturunan Umayyah diperkirakan merupakan faktor penting dalam keberhasilannya, dan mungkin menjelaskan mengapa saudaranya Yazid tidak efektif.