"When the Messenger of Allah established bond of brotherhood among his companions, Ali came to him with tears flowing from his eyes and said: "O Messenger of Allah! you have established bond of brotherhood between all your companions, but have not done so between me and any other person".

Zayd bin Arqam says: "I heard, then, the Messenger of Allah saying: "You are my brother in this world and in the hereafter".

And also reported on his chain of authorities is that the Messenger of Allah - peace and salutations of Allah be upon him - said: "Of whomsoever I am the master then Ali is his master". These words have been recorded exactly as they are by Tirmidhi and without any addition, while others have stated, in addition to that, the 'day' and the 'place'. Thus they mention the 'time', and that was during the return of the Messenger of Allah - peace and salutations of Allah be upon him - from the farewell pilgrimage, on the eighteenth day of Dhil-Hijjah and they mention the 'place' to be an area somewhere in Ghadir, located between Mecca and Madina, called 'Khum'. Hence that day came to be known as "the day of Ghadir Khum". And Hassaan has referred to this day in his aforementioned poem.

This day became a feast, since it was a day in which the Messenger of Allah - peace and salutations of Allah be upon him - endowed Ali particularly with this lofty position and honoured him with it, unlike the rest of the people".