That Ubaidullah bin ʿAbdullah and Salim bin ʿAbdullah informed him that they told Ibn ʿUmar when Ibn Az-Zubair was attacked by the army, saying "There is no harm for you if you did not perform Hajj this year. We are afraid that you may be prevented from reaching the Kaʿba." Ibn ʿUmar said "We set out with Messenger of Allah ﷺ and the non-believers of Quraish prevented us from reaching the Kaʿba, and so the Prophet ﷺ slaughtered his Hadi and got his head shaved." Ibn ʿUmar added, "I make you witnesses that I have made ʿUmra obligatory for me. And, Allah willing, I will go and then if the way to Kaʿba is clear, I will perform the Tawaf, but if I am prevented from going to the Kaʿba then I will do the same as the Prophet ﷺ did while I was in his company." Ibn ʿUmar then assumed Ihram for Umra from Dhul-Hulaifa and proceeded for a while and said, "The conditions of ʿUmra and Hajj are similar and I make you witnesses that I have made ʿUmra and Hajj obligatory for myself." So, he did not finish the Ihram till the day of Nahr (slaughtering) came, and he slaughtered his Hadi. He used to say, "I will not finish the Ihram till I perform the Tawaf, one Tawaf on the day of entering Mecca (i.e. of Safa and Marwa for both ʿUmra and Hajj).  

خَرَجْنَا مَعَ رَسُولِ اللَّهِ ﷺ فَحَالَ كُفَّارُ قُرَيْشٍ دُونَ الْبَيْتِ فَنَحَرَ النَّبِيُّ ﷺ هَدْيَهُ وَحَلَقَ رَأْسَهُ وَأُشْهِدُكُمْ أَنِّي قَدْ أَوْجَبْتُ الْعُمْرَةَ إِنْ شَاءَ اللَّهُ أَنْطَلِقُ فَإِنْ خُلِّيَ بَيْنِي وَبَيْنَ الْبَيْتِ طُفْتُ وَإِنْ حِيلَ بَيْنِي وَبَيْنَهُ فَعَلْتُ كَمَا فَعَلَ النَّبِيُّ ﷺ وَأَنَا مَعَهُ فَأَهَلَّ بِالْعُمْرَةِ مِنْ ذِي الْحُلَيْفَةِ ثُمَّ سَارَ سَاعَةً ثُمَّ قَالَ إِنَّمَا شَأْنُهُمَا وَاحِدٌ أُشْهِدُكُمْ أَنِّي قَدْ أَوْجَبْتُ حَجَّةً مَعَ عُمْرَتِي فَلَمْ يَحِلَّ مِنْهُمَا حَتَّى حَلَّ يَوْمَ النَّحْرِ وَأَهْدَى وَكَانَ يَقُولُ لاَ يَحِلُّ حَتَّى يَطُوفَ طَوَافًا وَاحِدًا يَوْمَ يَدْخُلُ مَكَّةَ  

Abdulla bin Abdullah and salim bin Abdullah bin Umar when the army besiged Ibn Az-Zubair before he was killed. They said: "It does not matter if you do not perform Hajj this year; we are afraid lest we are prevented from reaching the House." He Sadi: we went out with the Messenger of Allah and the disbelievers of the Quraish prevented us from reaching the House. So the Messenger of Allah slaughtered his Hadi and shave his head. I ask you to bear witness that I have resolved to peform Umrah. If Allah wills I will set out and if I am allowed to reach the House I will circumambulate it, and if I am prevented from reaching the House I will do what the Messenger of Allah did when I was with him." Then he traveled for a while, then he said: "They are both the same. I ask you to bear witness that I have resolved to perform Hajj as well as Umrah. And he did not exit Ihram for either until he exited Ihram on the Day of Sacrifice and offered his Hadi.  

خَرَجْنَا مَعَ رَسُولِ اللَّهِ ﷺ فَحَالَ كُفَّارُ قُرَيْشٍ دُونَ الْبَيْتِ فَنَحَرَ رَسُولُ اللَّهِ ﷺ هَدْيَهُ وَحَلَقَ رَأْسَهُ وَأُشْهِدُكُمْ أَنِّي قَدْ أَوْجَبْتُ عُمْرَةً إِنْ شَاءَ اللَّهُ أَنْطَلِقُ فَإِنْ خُلِّيَ بَيْنِي وَبَيْنَ الْبَيْتِ طُفْتُ وَإِنْ حِيلَ بَيْنِي وَبَيْنَ الْبَيْتِ فَعَلْتُ مَا فَعَلَ رَسُولُ اللَّهِ ﷺ وَأَنَا مَعَهُ ثُمَّ سَارَ سَاعَةً ثُمَّ قَالَ فَإِنَّمَا شَأْنُهُمَا وَاحِدٌ أُشْهِدُكُمْ أَنِّي قَدْ أَوْجَبْتُ حَجَّةً مَعَ عُمْرَتِي فَلَمْ يَحْلِلْ مِنْهُمَا حَتَّى أَحَلَّ يَوْمَ النَّحْرِ وَأَهْدَى  

[Machine] "We went out with the Messenger of Allah, wearing our ihram, and when the non-believers of Quraysh stopped us before reaching the Kaaba, the Messenger of Allah sacrificed his offering and shaved his head, then we returned. So I bear witness that I have performed 'Umrah. If there is a gap between me and the House, I will perform tawaf, and if there is a barrier between me and it, then I will do as the Messenger of Allah did when I was with him, so I will perform 'Umrah in Dhu al-Hulayfah." Then he continued on and said, "Indeed, their status is one." So I bear witness that I have performed Hajj along with my 'Umrah." Nafi' said, "And he performed a single circumambulation and a single sa'i for both of them. Then he did not remove his ihram until the Day of Sacrifice came, so he performed the sacrifice." And he used to say, "Whoever combines 'Umrah and Hajj, let him perform them both together. It is not permissible for him to remove his ihram until both of them are performed on the Day of Sacrifice."  

«قَدْ خَرَجْنَا مَعَ رَسُولِ اللَّهِ ﷺ مُعْتَمِرِينَ فَحَالَ كُفَّارُ قُرَيْشٍ دُونَ الْبَيْتِ فَنَحَرَ رَسُولُ اللَّهِ ﷺ هَدْيَهُ وَحَلَقَ رَأْسَهُ ثُمَّ رَجَعَ» فَأُشْهِدُكُمْ أَنِّي قَدْ أَوْجَبْتُ عُمْرَةً فَإِنْ خُلِّيَ بَيْنِي وَبَيْنَ الْبَيْتِ طُفْتُ وَإِنْ حِيلَ بَيْنِي وَبَيْنَهُ «فَعَلْتُ كَمَا كَانَ فَعَلَ رَسُولُ اللَّهِ ﷺ وَأَنَا مَعَهُ فَأَهَلَّ بِالْعُمْرَةِ مِنْ ذِي الْحُلَيْفَةِ» ثُمَّ سَارَ فَقَالَ إِنَّمَا شَأْنُهُمَا وَاحِدٌ أُشْهِدُكُمْ أَنِّي قَدْ أَوْجَبْتُ حَجًّا مَعَ عُمْرَتِي قَالَ نَافِعٌ فَطَافَ لَهُمَا طَوَافًا وَاحِدًا وَسَعَى لَهُمَا سَعْيًا وَاحِدًا ثُمَّ لَمْ يَحِلَّ حَتَّى جَاءَ يَوْمَ النَّحْرِ فَأَهْدَى وَكَانَ يَقُولُ مَنْ جَمَعَ الْعُمْرَةَ وَالْحَجَّ فَأَهَلَّ بِهِمَا جَمِيعًا فَلَا يَحِلَّ حَتَّى يَحِلَّ مِنْهُمَا جَمِيعًا يَوْمَ النَّحْرِ  

Abdulla bin Abdullah and salim bin Abdullah bin Umar when the army besiged Ibn Az-Zubair before he was killed. They said: "It does not matter if you do not perform Hajj this year; we are afraid lest we are prevented from reaching the House." He Sadi: we went out with the Messenger of Allah and the disbelievers of the Quraish prevented us from reaching the House. So the Messenger of Allah slaughtered his Hadi and shave his head. I ask you to bear witness that I have resolved to peform Umrah. If Allah wills I will set out and if I am allowed to reach the House I will circumambulate it, and if I am prevented from reaching the House I will do what the Messenger of Allah did when I was with him." Then he traveled for a while, then he said: "They are both the same. I ask you to bear witness that I have resolved to perform Hajj as well as Umrah. And he did not exit Ihram for either until he exited Ihram on the Day of Sacrifice and offered his Hadi. (Using translation from Nasāʾī 2859)  

خَرَجْنَا مَعَ رَسُولِ اللهِ ﷺ فَحَالَ كُفَّارُ قُرَيْشٍ دُونَ الْبَيْتِ فَنَحَرَ رَسُولُ اللهِ ﷺ هَدْيَهُ وَحَلَقَ رَأْسَهُ وَقَالَ أُشْهِدُكُمْ أَنِّي قَدْ أَوْجَبْتُ عُمْرَةً إِنْ شَاءَ اللهُ أَنْطَلِقُ فَإِنْ خُلِّيَ بَيْنِي وَبَيْنَ الْبَيْتِ طُفْتُ وَإِنْ حِيلَ بَيْنِي وَبَيْنَهُ فَعَلْتُ مَا فَعَلَ رَسُولُ اللهِ ﷺ وَأَنَا مَعَهُ ثُمَّ سَارَ سَاعَةً ثُمَّ قَالَ إِنَّمَا شَأْنُهُمَا وَاحِدٌ أُشْهِدُكُمْ أَنِّي قَدْ أَوْجَبْتُ حَجَّةً مَعَ عُمْرَتِي فَلَمْ يَحْلِلْ مِنْهُمَا حَتَّى أَحَلَّ يَوْمَ النَّحْرِ وَأَهْدَى