Sunan Ibn Majah

It was narrated that Sa`d bin Waqqas said:""Mu`awiyah came on one of his pilgrimages and Sa`d entered upon him. They mentioned `Ali, and Mu`awiyah criticized him. Sa`d became angry and said: 'Are you saying this of a man of whom I heard the Messenger of Allah (ﷺ) say: ""If I am a person's close friend, `Ali is also his close friend."" And I heard him say: ""You are to me like Harun was to Musa, except that there will be no Prophet after me."" And I heard him say: ""I will give the banner today to a man who loves Allah and His Messenger