Sahih Bukhari
Fighting for the Cause of Allah (Jihaad)
Volume: 004 / Book Number: 052 / Hadith Number: 184
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."