A few months before his death, Muhammad, who resided in the city of Medina, made his first and final pilgrimage to Mecca, the Farewell Pilgrimage. There, atop Mount Arafat, he addressed the Muslim masses in what came to be known as the Farewell Sermon. After completion of the Hajj pilgrimage, Muhammad journeyed back toward his home in Medina with the other pilgrims. During the journey, Muhammad stopped at the desert oasis of Khumm, and requested other pilgrims gather together, and there he addressed them with the famous words: Whose mawla (master) I am, this Ali is also his mawla. O God, befriend whosoever befriends him and be the enemy of whosoever is hostile to him. This is known as the event of Ghadir Khumm, which is remembered in the hadith of the pond of Khumm.