question #3 Sahih al-Bukhari 4183, Book 64, Hadith 223 : What historical event is associated with Abdullah bin Umar’s decision to assume Ihram for Umra during a period of afflictions?

`Abdullah bin `Umar set out for Umra during the period of afflictions, and he said, “If I should be
stopped from visiting the Ka`ba, I will do what we did when we were with Allah’s Messenger (ﷺ).” He
assumed Ihram for `Umra in the year of Al-Hudaibiya.