Al-Hajj 22:11

وَمِنَ ٱلنَّاسِ مَن يَعۡبُدُ ٱللَّهَ عَلَىٰ حَرۡفٖۖ فَإِنۡ أَصَابَهُۥ خَيۡرٌ ٱطۡمَأَنَّ بِهِۦۖ وَإِنۡ أَصَابَتۡهُ فِتۡنَةٌ ٱنقَلَبَ عَلَىٰ وَجۡهِهِۦ خَسِرَ ٱلدُّنۡيَا وَٱلۡأٓخِرَةَۚ ذَٰلِكَ هُوَ ٱلۡخُسۡرَانُ ٱلۡمُبِينُ 11

And of the people is he who worships Allah on an edge. If he is touched by good, he is reassured by it; but if he is struck by trial, he turns on his face [to the other direction]. He has lost [this] world and the Hereafter. That is what is the manifest loss