Quran Al-Jinn 72:27
إِلَّا مَنِ ٱرۡتَضَىٰ مِن رَّسُولٖ فَإِنَّهُۥ يَسۡلُكُ مِنۢ بَيۡنِ يَدَيۡهِ وَمِنۡ خَلۡفِهِۦ رَصَدٗا
Translation
Except whom He has approved of messengers, and indeed, He sends before him [i.e., each messenger] and behind him observers