Sahih Bukhari

Narrated Hafsa:(the wife of the Prophet) The Prophet (ﷺ) ordered all his wives to finish their Ihram during the year of Hajjat-ul-Wada`. On that, I asked the Prophet (ﷺ) ""What stops you from finishing your Ihram?"" He said, ""I have matted my hair and garlanded my Hadi. So I will not finish my Ihram unless I have slaughtered my Hadi