Yunus - 10:103

ثُمَّ نُنَجِّي رُسُلَنَا وَالَّذِينَ آمَنُواْ كَذَلِكَ حَقًّا عَلَيْنَا نُنجِ الْمُؤْمِنِينَ
[10:103]
Then We deliver Our messengers and those who believe-- even so (now), it is binding on Us (that) We deliver the believers.
In the end We deliver Our messengers and those who believe: Thus is it fitting on Our part that We should deliver those who believe!
Then shall We save Our messengers and the believers, in like manner (as of old). It is incumbent upon Us to save believers.