Hafsa (Allah be pleased with her), the wife of Allah's Apostle (ﷺ), said:Messenger of Allah. what about people who have put off Ihram whereas you have not put it off after your 'Umra? He said: I have stuck my hair and have driven my sacrificial animal, and would not, therefore, put off Ihram until I have sacrificed the animal.
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ حَفْصَةَ، - رضى الله عنهم - زَوْجَ النَّبِيِّ صلى الله عليه وسلم قَالَتْ يَا رَسُولَ اللَّهِ مَا شَأْنُ النَّاسِ حَلُّوا وَلَمْ تَحْلِلْ أَنْتَ مِنْ عُمْرَتِكَ قَالَ " إِنِّي لَبَّدْتُ رَأْسِي وَقَلَّدْتُ هَدْيِي فَلاَ أَحِلُّ حَتَّى أَنْحَرَ " .
Muslim
The Book of Pilgrimage • Hadith 192