Volume 2, Book 26, Number 637:
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). “