Sura 41 Fussilat (Explained In Detail), aya 23

1. وَذَٰلِكُمْ ظَنُّكُمُ الَّذِي ظَنَنْتُمْ بِرَبِّكُمْ أَرْدَاكُمْ فَأَصْبَحْتُمْ مِنَ الْخَاسِرِينَ

   And that was your assumption which you assumed about your Lord. It has brought you to ruin, and you have become among the losers."

   41:23

Tafsiri: Saheeh International