Question

what did Prophet Mohammed preach

Answer 1

Prophet Mohammed preached about the five Pillars of Islam which are as follows...

The Five Pillars of Islam (arkān al-Islāmأركان الإسلام; also arkān al-dīn أركان الدين"pillars of the religion") are five basic acts in Islam, considered mandatory by believers and are the foundation of Muslim life. They are summarized in the famous hadith of Gabriel.[

The Shia, Ahmadiyya, and Sunni agree on the essential details for the performance and practice of these acts,but the Shia do not refer to them by the same name (see Ancillaries of the Faith, for the Twelvers, and Seven pillars of Ismailism). They make up Muslim life, prayer, concern for the needy, self-purification, and the pilgrimage, if one is able.