This text acknowledges the importance of Hajj (Pilgrimage), but instead of focusing on the rituals of Hajj itself, it underlines and analyses all the verdicts and decrees associated with the capability to perform it. In case all the conditions are fulfilled, Hajj becomes obligatory for the person and it has to be performed within the same year. All the related rulings and verdicts about Hajj conditions are being listed and analyzed from the following Maraja’e: Late Ayatullah Khoi, Late Imam Khomeini, Ayatullah Seestani, Ayatullah Khamenei.