Sura al-Ḥajj 22:11

وَمِنَ ٱلنَّاسِ مَن يَعْبُدُ ٱللَّـهَ عَلَىٰ حَرْفٍ فَإِنْ أَصَابَهُۥ خَيْرٌ ٱطْمَأَنَّ بِهِۦ وَإِنْ أَصَابَتْهُ فِتْنَةٌ ٱنقَلَبَ عَلَىٰ وَجْهِهِۦ خَسِرَ ٱلدُّنْيَا وَٱلْأَخِرَةَ ذَٰلِكَ هُوَ ٱلْخُسْرَانُ ٱلْمُبِينُ

wa-mina l-nāsi man yaʿbudu allāha ʿalā ḥarfin fa-in aṣābahu khayrun iṭmaʾanna bihi wa-in aṣābathu fitnatun inqalaba ʿalā wajhihi khasira l-dunyā wa-l-akhirata dhālika huwa l-khusrānu l-mubīnu

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!