Imam Muhammad al-Mahdi is a significant figure in Islamic eschatology, particularly within the Shia branch of Islam. He is believed to be the twelfth and final Imam, born in 869 CE, who went into occultation to protect him from his enemies. Followers believe he will reappear at the end of times to bring justice and peace to the world. His return is anticipated as a pivotal event, where he will lead the faithful and establish a just society. The concept of al-Mahdi is also recognized in Sunni traditions, though interpretations and beliefs about his role and identity may differ between the two sects.