Read and reflect on verse 2606 from Surah Al-Hajj: And there is, too, among men many a one who worships God on the border-line [of faith]: thus, if good befalls him, he is satisfied with Him; but if a ...
وَمِنَ النَّاسِ مَنْ يَعْبُدُ اللَّهَ عَلَىٰ حَرْفٍ ۖ فَإِنْ أَصَابَهُ خَيْرٌ اطْمَأَنَّ بِهِ ۖ وَإِنْ أَصَابَتْهُ فِتْنَةٌ انْقَلَبَ عَلَىٰ وَجْهِهِ خَسِرَ الدُّنْيَا وَالْآخِرَةَ ۚ ذَٰلِكَ هُوَ الْخُسْرَانُ الْمُبِينُ
And there is, too, among men many a one who worships God on the border-line [of faith]: thus, if good befalls him, he is satisfied with Him; but if a trial assails him, he turns away utterly, losing [thereby both] this world and the life to come: [and] this, indeed, is a loss beyond compare!