O Allah, Revealer of the Book, Swift in reckoning, defeat the factions. O Allah, — The Oppressed
اللَّهُمَّ مُنْزِلَ الْكِتَابِ سَرِيعَ الْحِسَابِ اللَّهُمَّ اهْزِمْ الْأَحْزَابَ اللَّهُمَّ اهْزِمْهُمْ وَزَلْزِلْهُمْ
Transliteration: Allaahumma munzilal-kitaabi saree'al-hisaab, Allaahummahzimil-ahzaab, Allaahummahzimhum wa zalzilhum
Translation: O Allah, Revealer of the Book, Swift in reckoning, defeat the factions. O Allah, defeat them and shake them.
Reference: Bukhari, Muslim