In Islam, an Apostle or Messenger (Arabic: رسول‎ rasūl, plural رسل rusul) is a prophet sent by God.

According to the Qur'an, God sent many prophets to mankind. The five universally acknowledged messengers in Islam are Abraham, Moses, David, Jesus and Muhammad, as each is believed to have been sent with a scripture.Muslim tradition also maintains that Adam received scrolls as did some of the other patriarchs of the Generations of Adam.

The term Apostle or Messenger is also applied to prophets sent to preach to specific areas; the Qur'an mentions Jonah, Elijah, Ishmael and Shoaib and other prophets as being messengers as well. This meaning is also used for the following figures:

Seyyed Hossein Nasr (in Persian: سید حسین نصر‎) (born April 7, 1933 in Tehran) is an Iranian University Professor of Islamic studies at George Washington University, and a prominent Islamic philosopher. He is the author of many scholarly books and articles.

Nasr is a Muslim Persian philosopher and renowned scholar of comparative religion, a lifelong student and follower of Frithjof Schuon, and writes in the fields of Islamic esoterism, Sufism, philosophy of science, and metaphysics.

Nasr was the first Muslim to deliver the prestigious Gifford Lectures, and in year 2000, a volume was devoted to him in the Library of Living Philosophers.

Professor Nasr speaks and writes based on the doctrine and the viewpoints of the perennial philosophy on subjects such as philosophy, religion, spirituality, music, art, architecture, science, literature, civilizational dialogues, and the natural environment. He also wrote two books of poetry (namely Poems of the Way and The Pilgrimage of Life and the Wisdom of Rumi), and has been even described as a 'polymath'.