The document summarizes the Ghadeer-e-Khum incident where the Prophet Muhammad publicly announced Ali as the master of all believers. It occurred on the 18th of Dhu al-Hijjah in the 10th year after Hijra in front of between 90,000 to 120,000 Muslims near a place called Ghadeer-e-Khum. The Prophet took Ali by the hand and declared "Whomsoever I am the master, Ali is his master." Umar then congratulated Ali, saying "Congratulations, O son of Abu Taleb, You become Maula of all believers, men and women." Over 110 companions and 84 successors of the Prophet have narrated the Had