The Importance of the Prophet's Protection

Mundir and Amr both went back into now the massacre has been done. Both were caught and they were both about to be killed. Eventually Mundir was in fact killed because that was his Niyyah, he wasn't in fact killed. And for some reason Amr was allowed to go back. It is said that Amr made him to frame the chieftain,. The point being Allah will that SubhanAllah the same one who said perhaps we should go back, Allah will allow him to going back.