وَمِنَ النّاسِ مَن يَعبُدُ اللَّهَ عَلىٰ حَرفٍ ۖ فَإِن أَصابَهُ خَيرٌ اطمَأَنَّ بِهِ ۖ وَإِن أَصابَتهُ فِتنَةٌ انقَلَبَ عَلىٰ وَجهِهِ خَسِرَ الدُّنيا وَالآخِرَةَ ۚ ذٰلِكَ هُوَ الخُسرانُ المُبينُ

Among people, there is one who worships God on edge. If good touches him, he is content, but if a trial strikes him, he reverts, losing both this world and the Hereafter. This is the clear loss.