What was the reason for the Prophet Muhammad (peace be upon him) to maintain his Ihram after performing `Umra despite others having finished theirs?
 Narrated Ibn `Umar:                     Hafsa the wife of the Prophet said, "O Allah's Apostle! Why have the people finished their Ihram after performing `Umra but you have not finished your Ihram after performing `Umra?" He replied, "I have matted my hair and garlanded my Hadi. So I will not finish my Ihram till I have slaughtered (my Hadi). "