Devil Shaitan Presence at arguement Angel Reply to abuser Virtue of Patience

Abu Hurairah Radiyallahu 'anhu narrates that a man abused Abu Bakr while Nabi Sallallahu 'alaihi wasallam was sitting. 
Appreciating (the forbearance and patience of Abu Bakr Radiyallahu 'anhu), he kept smiling, 
 but when the man went on at length and Abu Bakr Radiyallahu 'anhu replied to some of what he said; Rasullullah Sallallahu 'alaihi wasallam became angry and left. 
Abu Bakr Radiyallahu 'anhu went after him and said: O Rasulallah! He was abusing me in your presence but when I replied to some of what he said, you became angry, and left.
 He replied: There was an angel with you, replying to him on your behalf but when you replied to him, Shaitan got in, and I am not supposed to sit with Shaitan. He then added: Abu Bakr! There are three things, all of which are true:
1. Anyone who is wronged and he ignores it for the sake of Allah Azza wa Jail, Allah will help him out and strengthen him.
2. Anyone who begins to give intending thereby to unite ties of relationship, Allah provides him with much more because of it.
3. Anyone who opens a door of begging, desiring to increase his wealth, Allah Azza wa Jalil increases his scantiness because of it 

(Musnad Ahmad)