The Holy Quran 12:110 — Surah Yusuf
Arabic text
حَتَّىٰٓ إِذَا ٱسْتَيْـَٔسَ ٱلرُّسُلُ وَظَنُّوٓا۟ أَنَّهُمْ قَدْ كُذِبُوا۟ جَآءَهُمْ نَصْرُنَا فَنُجِّىَ مَن نَّشَآءُ ۖ وَلَا يُرَدُّ بَأْسُنَا عَنِ ٱلْقَوْمِ ٱلْمُجْرِمِينَ
Translation
(When they are not punished immediately, the Kuffaar should not think that they have escaped punishment because Allaah allows them periods of grace. The same happened to the Kuffaar of the past. In fact, the punishment was delayed) Until the time came when (even) the Rusul grew despondent and thought that they had erred in their understanding (that they had completely miscalculated the time that Allaah's punishment would come to the Kuffaar). Then (at this desperate point) Our assistance came to them (and the Kuffaar were destroyed) and We rescued whom We willed (the Mu'mineen). Our punishment is never turned away from the criminal (wrong doing) nation.
Tafsir (excerpt) — Tafsir Usmani
A warning to the disbelievers: that is, do not be deceived by the delay of the punishment. Earlier nations too were given long respites, and the punishment was so long in coming that the deniers became completely carefree and began to commit more and more mischief.
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