[Machine] Abdullah bin Umar used to say: Hafsah, the wife of the Prophet ﷺ, informed me that the Prophet ﷺ ordered his wives to assume the state of ihram for the farewell Hajj. Hafsah asked him, "What prevents you from assuming ihram?" He replied, "I have already shaved my head and slaughtered my sacrificial animal, so I will not assume ihram until I perform another sacrifice." This narration is mentioned in Sahih from the hadith of Nafi' and we have also narrated from the Prophet ﷺ that he shaved his head during the farewell Hajj.
كَانَ عَبْدُ اللهِ بْنُ عُمَرَ ؓ يَقُولُ أَخْبَرَتْنِي حَفْصَةُ زَوْجُ النَّبِيِّ ﷺ أَنَّ النَّبِيَّ ﷺ أَمَرَ أَزْوَاجَهُ أَنْ يَحْلِلْنَ عَامَ حَجَّةِ الْوَدَاعِ فَقَالَتْ لَهُ حَفْصَةُ ؓ فَمَا يَمْنَعُكَ أَنْ تَحِلَّ؟ فَقَالَ إِنِّي لَبَّدْتُ رَأْسِي وَقَلَّدْتُ هَدْيِي فَلَا أَحِلُّ حَتَّى أَنْحَرَ هَدْيِي أَخْرَجَاهُ فِي الصَّحِيحِ مِنْ حَدِيثِ نَافِعٍ وَقَدْ رُوِّينَا عَنِ النَّبِيِّ ﷺ أَنَّهُ حَلَقَ فِي حَجَّةِ الْوَدَاعِ