(leadership), similar to how the Ark of Covenant in the house of the Israelites signaled prophethood. Imam Ali al-Ridha narrates that wherever the armaments among us would go, knowledge would also follow and the armaments would never depart from those with knowledge (Imamat). Other doctrines Doctrine about necessity of acquiring knowledge According to Muhammad Rida al-Muzaffar, God gives humans the faculty of reason and argument. Also, God orders humans to spend time thinking carefully on creation while he refers to all creations as his signs of power and glory. These signs encompass all of the universe. Furthermore, there is a similarity between humans as the little world and the universe as the large world. God does not accept the faith of those who follow him without thinking and only with imitation, but also God blames them for such actions. In other words, humans have to think about the universe with reason and intellect, a faculty bestowed on us by God. Since there is more insistence on the faculty of intellect among Shīʿa Muslims, even evaluating the claims of someone who claims prophecy is on the basis of intellect. Doctrine concerning prayer Praying in Shīʿa Islam has an important place, as Muhammad described it as a weapon of the believer. In fact, Duʼa considered as something that is a feature of Shia community in a sense. Performing Duʼa in Shīʿa Islam has a special ritual. Because of this, there are many books written on the instructions and conditions of praying among Shīʿa Muslims. Shīʿīte clergymen always invited their followers to recite Duʼa. For instance, ʿAlī has been considered with the subject of Duʼa because of his leadership in monotheism. Practices Shīʿa religious practices, such as prayers, differ only slightly from the Sunnīs. While all Muslims pray five times daily, Shīʿa Muslims have the option of combining Dhuhr with Asr and Maghrib with Isha', as there are three distinct times mentioned in the Quran. The Sunnīs tend to combine only under certain circumstances. Holidays Shīʿa Muslims celebrate the following annual holidays: Eid ul-Fitr, which marks the end of fasting during the month of Ramadan Eid al-Adha, which marks the end of the Hajj or pilgrimage to Mecca Eid al-Ghadeer, which is the anniversary of the Ghadir Khum, the occasion when Muhammad announced Ali's Imamate before a multitude of Muslims. Eid al-Ghadeer is held on the 18th of Dhu al-Hijjah. The Mourning of