“These two will have the burden of the errors of the entire ummah and surely all the blood that is shed till the Day Of Judgement, the wealth that is consumed unlawfully, the raping of women and the command that is forced – these all will be on these two without any decrease in the sins of the doer.”
Ammar said: “O the commander of the faithful, tell us the names of these two so we can curse them.”
He asked: “O Ammar do not you bear friendship with the Holy Prophet (P.B.U.H&H.P) and keep away from his enemies?”
Ammar replied: Yes. So he (A.S) said, ‘And do you keep friendship with me and keep away from my enemies?’ He replied: Yes
So he (A.S) said: “O Ammar that is enough for you. You kept away from them both and have cursed them both, although you do not know their names”
Ammar said: ‘O the commander of the faithful, if you tell the names of both of them two your companions, then they would keep away from them and this was better than leaving.’
Imam Ali (A.S) said: “May Allah have mercy on Salman, Abu Dhar and Miqdad. They know these two so well and keep very much away from them and curse them.”
So Ammar requested : ‘O the commander of the faithful, may I be sacrificed for you, tell us the names of those two because we bear witness that we bear friendship with those you bear friendship and keep away from those you keep away.’
Imam Ali (A.S) replied:
“O Ammar, at that time my companions will be killed and my community and my army and the large gathering that you see around me will separate from me. O Ammar, whoever kept friendship with Moses and Aaron (Haroon) and kept away from their enemies, he also kept away from the Calf and Samree and whoever kept away from the enemies of both of them, he also kept away from Moses and Aaron (Haroon) in such a manner that he does not even know. O Ammar, whoever kept friendship with the Holy Prophet (P.B.U.H&H.P) and his Ahlulbait (A.S) and kept friendship with me and stayed away from my enemies, then he kept away from both of them. Whoever kept away from their enemies he kept away from the Holy Prophet (P.B.U.H&H.P) in such a manner that he does not even know”
[Source: Kitab Sulaym bin Qays al-Hilaali Hadees 67]