It is narrated from Sayyiduna Sa’d bin Abi Waqqas (may Allah be pleased with him) that once the Prophet (peace and blessings of Allah be upon him) was coming from ‘Aliyah. On the way, he passed by the mosque of Banu Mu’awiyah. The Prophet (peace and blessings of Allah be upon him) entered this mosque and offered two rak’ahs of prayer. We also performed this prayer with the Prophet (peace and blessings of Allah be upon him). After that, the Prophet (peace and blessings of Allah be upon him) made a long supplication, and after finishing, he said:“I asked my Lord for three things, of which He granted me two and did not grant one. One request I made was that my Ummah should not be destroyed by drowning in the sea; Allah granted me this request. The second request I made was that my Ummah should not be destroyed by famine; Allah granted me this request as well. And the third request I made was that my Ummah should not fight among themselves, but Allah refused to grant this supplication.”