Sahih Muslim Book 35, Hadith Number 6572.
Chapter : Refuge from the evil of what one has done, and what one has not done.
This hadith has been transmitted on the authority of Abu Huraira that Allah’s Messenger (may peace be upon him) used to supplicate thus: “There is no god but Allah, the One Who conferred upon His armies the honour of victory and helped His servant rout the clans; there is nothing after that.”