Muhammad is the symbol of tolerance in all aspects of life which is proven in his behavior and decisions. For example, some Jews
pretended that they were greeting him, while in fact they were twisting the words and praying that he would die. 

They were telling him (Asaamu Alaikom) which means "death be upon you" instead of (Asaalamu Alaikom) which means "Peace be upon you"…Only the letter "l" marks the difference!!!! Although the Prophet knew their bad intention, his forgiveness is quite surprising to anyone who is fair. 

Imagine yourself in this situation, what will be your reaction? And compare it to the reaction of the Prophet, Peace Be upon Him. 

Imagine yourself a leader or a ruler being obeyed hearing a man asking Allah for your death with words that may deceivingly sound good. You might forgive him about praying that you would die, but you would not forgive his deceit and underestimating your
intellect.