Fiqh Jurisprudence - Rulings
Knowledge is the gateway to success. Islamic Obligatory Knowledge is the knowledge that every accountable person is obligated to know. "The person whom Allah willed to grant goodness, Allah makes him knowledgeable about the Religion.” (Al-Bukhariyy). It includes the knowledge of Islamic Belief, cases of Islamic Law about Purification, Prayer, Fasting and the like.
The prohet of Allah also in praising the Islamic knowledge said what means: "Allah facilitates a route to Paradise for the one who follows a certain route seeking the knowledge of the Religion." One must protect himself with the Islamic knowledge and specifically the Islamic beliefs.