The Prophet (ﷺ) used to say salam to his right and to his left: As-salamu ‘alaykum wa rahmatullah, as-salamu alaykum wa rahmatullah (peace be upon you and the mercy of Allah, peace be upon you and the mercy of Allah) until the whiteness of his cheek could be seen from here, and the whiteness of his cheek from here.
The Prophet (ﷺ) said: Leave the Abyssinians alone as long as they leave you alone, for it is only the Abyssinian with short legs who will seek to take out the treasure of the Ka’bah.
“I heard Ibn ‘Abbas say: ‘When ‘Umar was placed on his bed (i.e., his bier), the people around him gathered around him, praying and invoking blessings upon him,’ or he said, ‘praising him and invoking blessings upon him before (the bier) was lifted up, and I was among them. No one alarmed me except a man who crowded against me and seized me by the shoulder. I turned and saw that it was ‘Ali bin Abu Talib. He prayed for mercy for ‘Umar, then he said: “You have not left behind anyone who it is more beloved to me to meet Allah with the like of his deeds than yourself. By Allah, I think that Allah will most certainly unite you with your two companions, and that is because I often heard the Messenger of Allah saying: ‘Abu Bakr, ‘Umar and I went; Abu Bakr, ‘Umar and I came in; Abu Bakr, ‘Umar and I went out.’ So I think that Allah will most certainly join you to your two companions.”
The Messenger of Allah said: “O ‘Uthman, if Allah places you in authority over this matter (as the caliph) some day and the hypocrites want to rid you of the garment with which Allah has clothed you (i.e., the position of caliph), do not take it off.” He said that three times. (One of the narrators) Nu’man said: “I said to ‘Aishah: ‘What kept you from telling the people that?’ She said: ‘I was made to forget it.'”