اللَّهُمَّ مُنْزِلَ الكِتَابِ سَريعَ الحِسابِ اهْزِمَ الأَحْزَابَ اللَّهُمَّ اهْزِمْهُمْ وَزَلْزِلْهُمْ.
Allahumma munzilal-kitab, sareeAAal-hisab, ihzimil-ahzab, allahummah-zimhum wazalzilhum.
Translation
O Allah, Revealer of the Book, Swift at reckoning, defeat the confederates. O Allah, defeat them and convulse them.
When to recite
When supplicating against an enemy.