It was narrated that 'Aishah said: "We went out with the Messenger of Allah P.B.U.H when there Were five nights left of Dhul-Qa'dah, intending only to perform Hajj. When we came dose, the Messenger of Allah ordered that whoever did not have a sacrificial animal, then he should exit lhram, So all the people exited Ihram, except those Who had the sacrificial animal When the Day of sacrifice (i.e., the 10th of Dhul-Hijjah) came, some beef was brought to us, and it was said: 'The Messenger of Allah P.B.U.H has offered a sacrifice on behall of his wives.' (Sahih)