The creed is the most important of all religious sciences, as it is the first obligation upon every responsible Muslim. Upon entering Islam, a person must learn about monotheism before learning the acts of worship. When the Prophet (peace and blessings be upon him) sent Mu'adh to the people of Yemen, he told him: "Let the first thing you call them to be the Oneness of God. When they understand this, then inform them that God has obligated them to perform five daily prayers." This hadith indicates the importance of monotheism, which is the most important topic in creed. The Prophet (peace and blessings be upon him) commanded calling to the correctness of belief before calling to good deeds. He prioritized monotheism over the command to pray. Correcting one's belief is extremely important because it is the foundation upon which a person's actions are built, and the acceptance of good deeds depends on their being free from polytheism and disbelief.
This application presents a study on this important topic. The book is fully indexed and includes features such as page saving and night mode.