Hazrat Mu'adh bin Jabal narrates that the Messenger of Allah (peace and blessings be upon him) once led a prayer and performed a very long prayer. When he finished the prayer, I said: O Messenger of Allah (peace and blessings be upon him)! You performed a long prayer. So the Prophet (peace and blessings be upon him) said: I performed a prayer of longing and fear, and I asked Allah for three things for my Ummah. Allah granted me two of them and returned one to me. I asked Allah not to impose any enemy upon this Ummah other than themselves, so Allah accepted this supplication. And I asked Allah not to destroy this Ummah by drowning, so Allah accepted this supplication as well. And I also asked that there be no fighting among the people of this Ummah, but this supplication was returned to me.