After the Prophet introduced Islam, islam developed rapidly. Many people who study, precisely learn the Qur'an in a mosque that later there will be a formal educational institution.

Islamic historian Ibn Khaldun said in the Muqaddimah, teaching the Qur'an to children is a symbol of Islam. Muslims apply the policy in all cities to gain strong faith from the Qur'anic verses and hadiths of the Prophet.

The first educational institution in the Islamic world was established quite informally. The mosque is used as a meeting place for people who gather with scholars. They listen to lectures, read books, and study. Some of the greatest scholars learn that way.

The four founders of the school, Imam Abu Hanifah, Malik, Shafi'i, and Ibn Hanbali gained their knowledge by sitting in meetings with other scholars commonly held in mosques to discuss and study Islamic law.

Some schools throughout the Muslim world continue this tradition of informal education. In islam's three holiest places, such as the Grand Mosque in Makkah, the Prophet's Mosque in Medina, and al-Aqsa Mosque in Jerusalem, clerics regularly sit down and give lectures for anyone who wants to join. However, over time, Muslims began to build formal institutions dedicated to education.