Surah Al-Isra Verse 5 - English Translation by The Monotheist Group Edition
Surah Al-Israفَإِذَا جَآءَ وَعۡدُ أُولَىٰهُمَا بَعَثۡنَا عَلَيۡكُمۡ عِبَادٗا لَّنَآ أُوْلِي بَأۡسٖ شَدِيدٖ فَجَاسُواْ خِلَٰلَ ٱلدِّيَارِۚ وَكَانَ وَعۡدٗا مَّفۡعُولٗا
So, when the promise of the first one comes to pass, We would send against you servants of Ours who are very powerful, thus they managed to breach your very homes, and this was a promise which has come to pass