Sahih Bukhari Volume 2, Book 26, Hadith Number 767.
Narated By ‘Amra bint ‘AbdurRahman : I heard ‘Aisha saying, “Five days before the end of Dhul-Qa’ada we set out from Medina in the company of Allah’s Apostle with the intention of performing Hajj only. When we approached Mecca, Allah’s Apostle ordered those who had no Hadi with them to finish their lhram after performing Tawaf of the Ka’ba and (Sa’i) and between Safa and Marwa.” ‘Aisha added, “On the day of Nahr (slaughtering of sacrifice) beef was brought to us. I asked, ‘What is this?’ The reply was, ‘Allah’s Apostle (p.b.u.h) has slaughtered (sacrifices) on behalf of his wives.'”