Surah Al-Hajj (The Pilgrimage), Verse 11

وَمِنَ النَّاسِ مَنْ یَّعْبُدُ اللّٰهَ عَلٰی حَرْفٍ فَاِنْ اَصَابَهٗ خَیْرُ ݹطْمَاَنَّ بِهٖ وَاِنْ اَصَابَتْهُ فِتْنَةُ ݹنْقَلَبَ عَلٰی وَجْهِهٖ خَسِرَ الدُّنْیَا وَالْاٰخِرَةَ ذٰلِكَ هُوَ الْخُسْرَانُ الْمُبِیْنُ ۟

Wa minan naasi mai ya'budul laaha 'alaa harfin fa in asaabahoo khairunit maanna bihee wa in asaabat hu fitnatunin qalaba 'alaa wajhihee khasirad dunyaa wal aakhirah; zaalika huwal khusraanul mubeen

“There are among men some who serve Allah, as it were, on the verge: if good befalls them, they are, therewith, well content; but if a trial comes to them, they turn on their faces: they lose both this world and the Hereafter: that is loss for all to see!”

Quran 22:11 (Yusuf Ali Translation)