Sura Yūsuf 12:110

حَتَّىٰٓ إِذَا ٱسْتَيْـَٔسَ ٱلرُّسُلُ وَظَنُّوٓا۟ أَنَّهُمْ قَدْ كُذِبُوا۟ جَآءَهُمْ نَصْرُنَا فَنُجِّىَ مَن نَّشَآءُ وَلَا يُرَدُّ بَأْسُنَا عَنِ ٱلْقَوْمِ ٱلْمُجْرِمِينَ

ḥatta idhā istayʾasa l-rusulu wa-ẓannū annahum qad kudhibū jāʾahum naṣrunā fa-nujjiya man nashāʾu wa-lā yuraddu baʾsunā ʿani l-qawmi l-mujrimīna

(Respite will be granted) until, when the messengers give up hope (of their people) and (come to) think that they were treated as liars, there reaches them Our help, and those whom We will are delivered into safety. But never will be warded off our punishment from those who are in sin.