When ʿAbdullah bin ʿUmar set out for Mecca intending to perform Umra, at the time of afflictions, he said, "If I should be prevented from reaching the Kaʿba, then I would do the same as Messenger of Allah ﷺ did, so I assume the lhram for Umra as Messenger of Allah ﷺ assumed the Ihram for Umra in the year of Hudaibiya."
عَنِ الْبَيْتِ صَنَعْتُ كَمَا صَنَعْنَا مَعَ رَسُولِ اللَّهِ ﷺ فَأَهَلَّ بِعُمْرَةٍ مِنْ أَجْلِ أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ أَهَلَّ بِعُمْرَةٍ عَامَ الْحُدَيْبِيَةِ