What did the Prophet Muhammad (saw) invoke upon the pagans on the battle of Al-Ahzab?
 Narrated `Abdullah bin Abi `Aufa:                     Allah's Apostle invoked evil upon the pagans on the ay (of the battle) of Al-Ahzab, saying, "O Allah! The Revealer of the Holy Book, the Swift-Taker of Accounts, O Allah, defeat Al-Ahzab (i.e. the clans), O Allah, defeat them and shake them."