Surah Fusilat (The Verses Prefectly Explained), Verse 50

وَلَىِٕنْ اَذَقْنٰهُ رَحْمَةً مِّنَّا مِنْ بَعْدِ ضَرَّآءَ مَسَّتْهُ لَیَقُوْلَنَّ هٰذَا لِیْ وَمَاۤ اَظُنُّ السَّاعَةَ قَآىِٕمَةً وَّلَىِٕنْ رُّجِعْتُ اِلٰی رَبِّیْۤ اِنَّ لِیْ عِنْدَهٗ لَلْحُسْنٰی فَلَنُنَبِّئَنَّ الَّذِیْنَ كَفَرُوْا بِمَا عَمِلُوْا وَلَنُذِیْقَنَّهُمْ مِّنْ عَذَابٍ غَلِیْظٍ ۟

Wa la in azaqnaahu rahmatam minnaa mim ba'di dar raaa'a massat hu la yaqoolanna haazaa lee wa maaa azunnus Saa'ata qaaa'imatanw wa la'in ruji'tu ilaa Rabbeee inna lee 'indahoo lalhusnaa; falanu nabbi'annal lazeena kafaroo bimaa 'amiloo wa lanuzeeqan nahum min 'azaabin ghaleez

“When we give him a taste of some Mercy from Ourselves, after some adversity has touched him, he is sure to say, "This is due to my (merit): I think not that the Hour (of Judgment) will (ever) be established; but if I am brought back to my Lord, I have (much) good (stored) in His sight!" But We will show the Unbelievers the truth of all that they did, and We shall give them the taste of a severe Penalty.”

Quran 41:50 (Yusuf Ali Translation)