‏السلام : Hadeeth No:5374 Abu Huraira reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: The rider should first greet the pedestrian, and the pedestrian the one who is seated and a small group should greet a larger group (with as-Salam-u-'Alaikum)....

‏فضائل الصحابة‏ : Hadeeth No:6175 Abu Barza reported that Allaah's Messenger (sallAllaahu alayhi wa sallam) sent a person to a tribe amongst the tribes of Arabia. They reviled him and beat him. He came to Allaah's Messenger (sallAllaahu alayhi wa sallam) and narrated to him (the story of atrocities perpetrated upon him by the people...