لَهٗ مُعَقِّبٰتٌ مِّنْۢ بَيْنِ يَدَيْهِ وَمِنْ خَلْفِهٖ يَحْفَظُوْنَهٗ مِنْ اَمْرِ اللّٰهِ ۗاِنَّ اللّٰهَ لَا يُغَيِّرُ مَا بِقَوْمٍ حَتّٰى يُغَيِّرُوْا مَا بِاَنْفُسِهِمْۗ وَاِذَآ اَرَادَ اللّٰهُ بِقَوْمٍ سُوْۤءًا فَلَا مَرَدَّ لَهٗ ۚوَمَا لَهُمْ مِّنْ دُوْنِهٖ مِنْ وَّالٍ ( الرعد: ١١ )
Lahoo mu'aqqibaatum mim baini yadaihi wa min khalfihee yahfazoonahoo min amril laah; innal laaha laa yughaiyiru maa biqawmin hattaa yughaiyiroo maa bianfusihim; wa izaaa araadal laahu biqawmin sooo'an falaa maradda lah; wa maa lahum min dooniheeminw waal (ar-Raʿd 13:11)
For him [i.e., each one] are successive [angels] before and behind him who protect him by the decree of Allah. Indeed, Allah will not change the condition of a people until they change what is in themselves. And when Allah intends for a people ill, there is no repelling it. And there is not for them besides Him any patron. (Ar-Ra'd  : 11)
1 Mufti Taqi Usmani
For every one (from among you) there are angels replacing one another, in front of him and behind him, who guard him under the command of Allah. Surely, Allah does not change the condition of a people unless they change themselves. When Allah intends evil for a people, there is no way to turn it back, and for them there is no patron other than Him.