11وَمِنَ النّاسِ مَن يَعبُدُ اللَّهَ عَلىٰ حَرفٍ ۖ فَإِن أَصابَهُ خَيرٌ اطمَأَنَّ بِهِ ۖ وَإِن أَصابَتهُ فِتنَةٌ انقَلَبَ عَلىٰ وَجهِهِ خَسِرَ الدُّنيا وَالآخِرَةَ ۚ ذٰلِكَ هُوَ الخُسرانُ المُبينُShabbir AhmedAnd among people there is the one who serves Allah conditionally. If things go his way, he is content. But if some adversity touches him he turns on his face. (4:143). Thus he loses both, in this life and the life to come. That is the sheer loss.