Mohammad- Muhammad was an Arab religious, social, and political leader and the founder of the world religion of Islam. According to Islamic doctrine, he was a prophet, sent to preach and confirm the monotheistic teachings of Adam, Abraham, Moses, Jesus, and other prophets.
Gabriel- Islam regards Gabriel (Jibril) as an archangel sent by God to various prophets, including Muhammad.[8] The first five verses of the Al-Alaq, the 96th chapter of the Quran, is believed by Muslims to have been the first verses revealed by Jibreel to Muhammad.
Hadith- Hadith, Arabic Ḥadīth (“News” or “Story”), also spelled Hadīt, record of the traditions or sayings of the Prophet Muhammad, revered and received as a major source of religious law and moral guidance, second only to the authority of the Qurʾān, the holy book of Islam.