Abdullah bin Shaddad bin al-Had (may Allah have mercy on him) narrates from Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) that he said: One day the Messenger of Allah (peace and blessings be upon him) performed a prayer in which he prolonged it. When he (peace and blessings be upon him) had finished, I said: O Messenger of Allah, today you made the prayer very long. He (peace and blessings be upon him) said: "I prayed (this) prayer out of hope and fear, and I asked Allah for three things for my Ummah; He granted me two and withheld one. I asked that He not give an enemy from other than them dominance over them, and He granted me that. I asked that He not destroy them by drowning, and He granted me that. And I asked that He not let their fighting be among themselves, and He did not grant me that."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17443