It is narrated on the authority of Ibn Abbas that the Messenger of Allah PBUH said:

"When my Lord Dhul-Jalal called me to Ascension, a voice came: O Muhammad! .

I said: I am present, I am present my Lord.

Then Allah revealed to me: O Muhammad! Do you know that there was a disagreement between Mullah Aala on some matter?

I said: Oh my God! I don't know about it.

Allah Almighty said: O Muhammad! Did you take any of the men after you as your representative, minister, brother, and executor?

I said: Oh my Lord! Who should I choose? So please choose for me.

Allah Almighty revealed to me: O Muhammad! I have chosen Ali among the men for this

I said: Oh my Allah! He is my cousin.

The revelation was revealed: O Muhammad! Yes, Ali will be your inheritor after you, and the inheritor of your knowledge, and on the Day of Resurrection, your Flag Bearer of Lawaii Hamd), and he will be the steward of your cistern (Kawsar), and he will quench the thirst of the believer who comes from your Ummah

Then Allah revealed the revelation: O Muhammad! I have sworn by my Nafs that those who have hatred and enmity against you, your family and your pure offspring will never be able to drink water from this reservoir. And O Muhammad! I say the absolute truth that I will enter all your ummah into Paradise, only that person who refuses to go to heaven will be left alone.

I said: Oh my God! How can anyone refuse to go to heaven?

Allah revealed the revelation again: O Muhammad! I have chosen you from among My creations and chosen a successor after you and given him a status second to you that Aaron had from Moses, but that there will be no prophet after you. I have made his love in your heart. And have made him the father of your children. Therefore, after you, he has the same right over your ummah that you have over your ummah during your life. Now whoever denied his right, he denied your right, whoever denied friendship and love with him, he denied friendship and love with you, and whoever denied your friendship and love, then understand, he refused to go to heaven.

Seeing this grace of Allah, I immediately fell into prostration.

Then a preacher said O Muhammad! Raise your head in prostration and you will get what you ask for.

I said: Oh my Allah! After me, gather all my Ummah on Wilayat Ali, so that on the Day of Resurrection, they will all come to me on the Hauz Kausar.

Allah revealed the revelation: O Muhammad, I have already decided about my servants before their creation and this decision of mine will remain in force. I will destroy as many of them as I will and I will guide whom as many as I want.

And I have given your knowledge to Ali after you. And after you, among your people and your nation, made him your minister and your caliph. And this is my absolute decision: that he who harbors enmity with them and rejects their guardianship after you will not enter Paradise.

Who held grudge against them, he held a grudge against me. He who held enmity with them, he held enmity with you, and who held a grudge against you, he held enmity with me. He who loved them, he loved you, he who loved you, he loved me.

I gave them the privilege that eleven Mahdi will be born from their bones, all of them will be from your descendants, from the progeny of Fatima.

The last of these eleven will be followed by Isa bin Maryam. He will fill the earth with justice just as would be filled with injustice. Through him, the people suffering from death will be saved, the people trapped in error will be guided. Blind people will get sight through him, and the sick will be healed.