Surah Al-Hajj Verse 11 - English Translation by Aisha Bewley
Surah Al-Hajjوَمِنَ ٱلنَّاسِ مَن يَعۡبُدُ ٱللَّهَ عَلَىٰ حَرۡفٖۖ فَإِنۡ أَصَابَهُۥ خَيۡرٌ ٱطۡمَأَنَّ بِهِۦۖ وَإِنۡ أَصَابَتۡهُ فِتۡنَةٌ ٱنقَلَبَ عَلَىٰ وَجۡهِهِۦ خَسِرَ ٱلدُّنۡيَا وَٱلۡأٓخِرَةَۚ ذَٰلِكَ هُوَ ٱلۡخُسۡرَانُ ٱلۡمُبِينُ
Among the people there is one who worships Allah right on the edge. If good befalls him, he is content with it, but if a trial befalls him, he reverts to his former ways, losing both this world and the Next World. That is indeed sheer loss