The aim of azan (call to prayer) is to inform people about its exact time. The call words are comprehensive for the Islamic doctrine of faith. In this hadith, the Prophet (ﷺ) commands Muslims to repeat what the caller is saying. Despite its being short, the sentence, “Allah is the greatest" refers to His perfection and negates any meaning that may contradict so. It may mean that He is too great that we can realize His greatness. The testimony of faith has two parts. The first one is to prove monotheism, mean that no god worthy of worship except Allah, and negate its opposite of having any partnership. It is the testimony that has precedence and priority over any other issue in Islam. The other part is to declare and prove the message of Prophet Muhammad (ﷺ), which directly comes after the testimony of Allah’s oneness. Afterward, the caller urges Muslims twice to come to perform prayer, which mentioned after proving the Prophet's message, for we know the obligation of prayer from the Prophet’s teachings, not due to human realization. Then, the caller commands Muslims twice to come to success, victory, and permanent bliss. After these two sentences, the listener should say, “There is neither might nor power except with Allah.” It is as if a Muslim confirmed his weakness that he had no help with prayer or success except through Allah's support. In the end, the Prophet (ﷺ) confirms that whoever repeats, with his tongue and heart, what the call says will enter Paradise, for repeating these words confirms the oneness of Allah along with glorifying, obeying, surrendering, praising, trusting, and seeking His help. Finally, this hadith urges Muslims to sincerity and encourages them to repeat the words of the call to prayer..