كتاب الحج
15  
The Book of Pilgrimage
(25)
Chapter: The pilgrim performing Qiran should not exit Ihram except when the pilgrims performing Ifrad exit Ihram
(25)
باب بَيَانِ أَنَّ الْقَارِنَ لاَ يَتَحَلَّلُ إِلاَّ فِي وَقْتِ تَحَلُّلِ الْحَاجِّ الْمُفْرِدِ ‏
Sahih Muslim 1229 e

Hafsa (Allah be pleased with her) said that Allah's Apostle (ﷺ) commanded his wives that they should put off Ihram during the year of Hajj (at-ul-Wada'). whereupon she (Hafsa) said:

What hinders you that you have not put off Ihram? Thereupon he said: I have stuck my hair and driven my sacrificial animal along with men and it is not permissible to put off Ihram (under this condition until I have sacrificed the animal.
وَحَدَّثَنَا ابْنُ أَبِي عُمَرَ، حَدَّثَنَا هِشَامُ بْنُ سُلَيْمَانَ الْمَخْزُومِيُّ، وَعَبْدُ الْمَجِيدِ، عَنِ ابْنِ جُرَيْجٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، قَالَ حَدَّثَتْنِي حَفْصَةُ، - رضى الله عنها - أَنَّ النَّبِيَّ صلى الله عليه وسلم أَمَرَ أَزْوَاجَهُ أَنْ يَحْلِلْنَ عَامَ حَجَّةِ الْوَدَاعِ ‏.‏ قَالَتْ حَفْصَةُ فَقُلْتُ مَا يَمْنَعُكَ أَنْ تَحِلَّ قَالَ ‏ "‏ إِنِّي لَبَّدْتُ رَأْسِي وَقَلَّدْتُ هَدْيِي فَلاَ أَحِلُّ حَتَّى أَنْحَرَ هَدْيِي ‏"‏ ‏.‏
Reference : Sahih Muslim 1229e
In-book reference : Book 15, Hadith 196
USC-MSA web (English) reference : Book 7, Hadith 2837
  (deprecated numbering scheme)