He said: Mu<ammad b. A<mad b. `Alي b. Mukhallad (d. about 357 A.H) narrated to us, he said that Mu<ammad b. `Uthmلn b. Abي Shaybah narrated to us, he said: Ya<ya al-\immلnي narrated to me, he said; Qays b. al-Rabي` narrated to me from Abي Hلrْn al-`Abdي from Abي Sa`يd al-Khudrي, may Allah be pleased with him:
The Prophet, blessings and salutations of Allلh on him, summoned people to `Alي in Ghadيr Khumm. He gave instructions about the thorns under the tree and they were swept up. That was a Thursday. He called `Alي and took him by his upper arms and raised them up until the people saw the whiteness of the armpits of the Messenger of Allلh. They did not disperse until this verse was revealed: ‘Today I have perfected for you your religion...’ (5:3).
The Messenger of Allلh, blessings and salutations of Allلh on him, said: "Allلh is most Great at the perfection of religion and the completion of blessings, and the Lord’s acceptance of my mission and the mastership (wilلya) of `Alي, peace be upon him, after me."
Then he said: "Of whomsoever I am master, `Alي is his master. O Allلh, befriend one who befriends him and be at enmity with one who is hostile to him; help the one who helps him and forsake the one who forsakes him."
\assلn said: "Permit me, O Messenger of Allلh, to recite some verses on `Alي for you to hear." He said: Recite, with the blessing of Allلh."
So \assلn rose and said: "O elders of Quraysh, I follow it with my profession of the testimony of the Messenger of Allلh concerning the mastership (wilلya) that is decreed." Then he recited:
"On the day of al-Ghadيr their Prophet calls to them at Khumm, so listen to the Messenger calling;
He says: Who is your master and your guardian? They said, without displaying blindness there:
Your God is our Master and you are our guardian, and you will not find among us anyone disobedient concerning the Wilلya.
He said to him: Rise, O `Alي, for I approve of you as Imلm and guide after me;
Of whomsoever I am master (mawlل), then this is his guardian;
Be to him followers of truth, adhering;
Thereupon he called out: O Allah befriend his friend and to him who opposes `Alي, be at enmity."