Surah Fussilat, Verse 23

وَذَٰلِكُمۡ ظَنُّكُمُ ٱلَّذِي ظَنَنتُم بِرَبِّكُمۡ أَرۡدَىٰكُمۡ فَأَصۡبَحۡتُم مِّنَ ٱلۡخَٰسِرِينَ٢٣

wadhālikum ẓannukumu alladhī ẓanantum birabbikum ardākum fa-aṣbaḥtum mina l-khāsirīna

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