Abdur Rahman bin Ibrahim عبد الرحمن بن إبراهيم - دحيم · The Book of the Sunnah

I heard 'Irbad bin Sariyah say: 'One day, the Messenger of Allah (ﷺ) stood up among us and delivered a deeply moving speech to us that melted our hearts and caused our eyes to overflow with tears. It was said to him: 'O Messenger of Allah, you have delivered a speech of farewell, so enjoin something upon us.' He said: 'I urge you to fear Allah, and to listen and obey, even if (your leader) is an Abyssinian slave. After…

"The Messenger of Allah (ﷺ) said: 'No slave truly believes until he believes in four things: in Allah alone with no partner; that I am the Messenger of Allah; in the resurrection after death; and in the Divine Decree (Qadar).'"

"The Messenger of Allah came out standing between Abu Bakr and 'Umar and said: 'Thus will I be resurrected,'"

"The Messenger of Allah said: 'Allah has commanded me to love four people, and He told me that He also loves them.' He was asked: 'O Messenger of Allah, who are they?' He said: ''Ali is one of them,' and he said that three times, 'and Abu Dharr, Salman and Miqdad.'"

Zaid was: "The most knowledgeable of them concerning the rules of inheritance."