Ghadir Khumm
The Ghadīr Khumm (Arabic: غَدِير خُمّ) was a gathering of Muslims to attend a sermon delivered by the Islamic prophet Muhammad on 16 March 632 CE. The gathering is said to have taken place by the ghadir (Arabic: غَدِير, lit. 'pool') in the wadi (Arabic: وَادِي, lit. 'valley') of Khumm, located near the then settlement of al-Juhfa on the path between Mecca and Medina, where Muhammad halted the large caravan of Muslims who had accompanied him in the Farewell Pilgrimage, his only Hajj ritual. In the sermon, made shortly before his death in June 632, Muhammad made a declaration in favor of Ali ibn Abi Talib, his cousin and son-in-law, by saying: "He whose mawla I am, Ali is his mawla" (Arabic: من كنت مولاه فهذا علي مولاه).