﴿ إِلَّا مَنِ ٱرْتَضَىٰ مِن رَّسُولٍۢ فَإِنَّهُۥ يَسْلُكُ مِنۢ بَيْنِ يَدَيْهِ وَمِنْ خَلْفِهِۦ رَصَدًۭا ﴾

“unless it be to an apostle whom He has been pleased to elect [there for]: and then He sends forth [the forces of heaven] to watch over him in whatever lies open before him and in what is beyond his ken –”

Please check ayah 72:28 for complete tafsir.