Ghadir Khumm — "Whoever I Am His Mawla, Ali Is His Mawla" (Tirmidhi 3713)

A Halt Between Two Cities

It is 18 Dhul-Hijjah of the year 10 AH — March 632 CE. The Prophet Muhammad (peace be upon him) is returning from the Farewell Pilgrimage, the only Hajj of his life. Tens of thousands of pilgrims move with him. Roughly midway on the road, near al-Juhfa — the junction where caravans would split toward Madinah, Egypt, Syria and Iraq — lies a pool of water called Ghadir Khumm, "the pool of Khumm." In the midday heat the order comes: halt. Those who have gone ahead are called back; those lagging behind are awaited. A raised place is prepared. The Prophet takes the hand of his cousin and son-in-law, Ali ibn Abi Talib, lifts it so the people can see, and speaks one short sentence.

Fourteen centuries later, that sentence stands on the exact fault line between the two largest communities of Islam. One community counts this day among its greatest festivals and reads the sentence as the appointment of Ali as successor. The other community also transmits the sentence, loves the man it honors — and reads no appointment in it at all. Same words. Two readings. Two histories.