كتاب الذكر والدعاء والتوبة والاستغفار
48  
The Book Pertaining to the Remembrance of Allah, Supplication, Repentance and Seeking Forgiveness
(18)
Chapter: Supplications [Of The Prophet (SAW)]
(18)
باب التَّعَوُّذِ مِنْ شَرِّ مَا عَمِلَ وَمِنْ شَرِّ مَا لَمْ يَعْمَلْ
Sahih Muslim 2724

This hadith has been transmitted on the authority of Abu Huraira that Allah's Messenge; (ﷺ) 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."
حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، حَدَّثَنَا لَيْثٌ، عَنْ سَعِيدِ بْنِ أَبِي سَعِيدٍ، عَنْ أَبِيهِ، عَنْ أَبِي، هُرَيْرَةَ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ يَقُولُ ‏ "‏ لاَ إِلَهَ إِلاَّ اللَّهُ وَحْدَهُ أَعَزَّ جُنْدَهُ وَنَصَرَ عَبْدَهُ وَغَلَبَ الأَحْزَابَ وَحْدَهُ فَلاَ شَىْءَ بَعْدَهُ ‏"‏ ‏.‏
Reference : Sahih Muslim 2724
In-book reference : Book 48, Hadith 103
USC-MSA web (English) reference : Book 35, Hadith 6572
  (deprecated numbering scheme)