Obey Allah's orders .

On the fourth day of Dhul-Hijja, Prophet Muhammad and his companions arrived in Mecca with the intention of performing Hajj. However, he ordered them to assume Ihram for Umra instead, except those who had a sacrifice with them. This is because it was not possible to perform both rituals at once due to time constraints. The ritual of assuming Ihram is an important part of both Hajj and Umrah as it symbolizes one's intention and commitment towards Allah's orders. It also serves as a reminder that all Muslims are equal before Allah regardless of their social or economic status in life. This hadith teaches us that we should always strive to fulfill our obligations towards Allah even if it means sacrificing something else in order to do so.