Sahih Bukhari
Pilgrims Prevented from Completing the Pilgrimmage
Volume: 003 / Book Number: 028 / Hadith Number: 36
Narrated Ibn 'Abbas:
Allah's Apostle was prevented from performing ('Umra) Therefore, he shaved his head and had sexual relations with his wives and slaughtered his Hadi and performed Umra in the following year.