"Ibn 'Umar used to denounce stipulating conditions in Hajj, and said: 'Is not the Sunnah of the Messenger of Allah sufficient for you? If one of you is prevented from performing (finishing) Hajj let him circumambulate the House and (perform Sai) between As-Safa and al-Marwah, then exit Ihram completely until he performs Hajj the following year. And let him offer a Hadi or fast if he con not find a Hadi. (Using translation from Nasāʾī 2769)  

كَانَ ابْنُ عُمَرَ يُنْكِرُ الِاشْتِرَاطَ فِي الْحَجِّ وَيَقُولُ «أَلَيْسَ حَسْبُكُمْ سُنَّةُ رَسُولِ اللهِ ﷺ؟ إِنْ حُبِسَ أَحَدُكُمْ عَنِ الْحَجِّ طَافَ بِالْبَيْتِ وَبِالصَّفَا وَالْمَرْوَةِ ثُمَّ حَلَّ مِنْ كُلِّ شَيْءٍ حَتَّى يَحُجَّ عَامًا قَابِلًا وَيَهْدِي وَيَصُومُ إِنْ لَمْ يَجِدْ هَدْيًا»  

he used to denounce stipulating conditions in Hajj and said: "Is not the Sunnah of your Prophet sufficient for you? If one of you is prevented (from completing Hajj) by anything, let him come to the House and circumambulate it, and (perform Sai) between As-Safa and Al-Marwah, then let him shave his head or cut his hair, then exit Ihram; and he has to perform Hajj the next year." (Using translation from Nasāʾī 2770)  

أَنَّهُ كَانَ يُنْكِرُ الِاشْتِرَاطَ فِي الْحَجِّ وَيَقُولُ «مَا حَسْبُكُمْ سُنَّةُ نَبِيِّكُمْ ﷺ إِنَّهُ لَمْ يَشْتَرِطْ فَإِنْ حَبَسَ أَحَدَكُمْ حَابِسٌ فَلْيَأْتِ الْبَيْتَ فَلْيَطُفْ بِهِ وَبَيْنَ الصَّفَا وَالْمَرْوَةِ ثُمَّ لِيَحْلِقْ أَوْ لْيُقَصِّرْ ثُمَّ لِيَحِلَّ وَعَلَيْهِ الْحَجُّ مِنْ قَابِلٍ»