Unity between Muslims is considered as a crucial matter in Islam. Thus, the Qur'an compares discordance and disunity among Muslims to “a pit of the Fire”: "And hold firmly to the rope of Allah all together and do not become divided...And you were on the edge of a pit of the Fire, and He saved you from it." (3:103). Looking at the former nations, we find them honored and glorious when they were united, but disgraced and vulnerable when they fell apart [3]. Hajj, as one of the obligatory rituals in Islam, is one of the ways which encourages unity among Muslim nations. Let’s see how.