Sura Āl-ʿImrān 3:103

وَٱعْتَصِمُوا۟ بِحَبْلِ ٱللَّـهِ جَمِيعًا وَلَا تَفَرَّقُوا۟ وَٱذْكُرُوا۟ نِعْمَتَ ٱللَّـهِ عَلَيْكُمْ إِذْ كُنتُمْ أَعْدَآءً فَأَلَّفَ بَيْنَ قُلُوبِكُمْ فَأَصْبَحْتُم بِنِعْمَتِهِۦٓ إِخْوَٰنًا وَكُنتُمْ عَلَىٰ شَفَا حُفْرَةٍ مِّنَ ٱلنَّارِ فَأَنقَذَكُم مِّنْهَا كَذَٰلِكَ يُبَيِّنُ ٱللَّـهُ لَكُمْ ءَايَٰتِهِۦ لَعَلَّكُمْ تَهْتَدُونَ

wa-iʿtaṣimū biḥabli allāhi jamīʿan wa-lā tafarraqū wa-idhkurū niʿmata allāhi ʿalaykum idh kuntum aʿdaʾan fa-allafa bayna qulūbikum fa-aṣbaḥtum biniʿmatihi ikhwānan wa-kuntum ʿalā shafā ḥufratin mina l-nāri fa-anqadhakum minhā ka-dhālika yubayyinu allāhu la-kum āyātihi la-ʿallakum tahtadūna

And hold fast, all together, by the rope which Allah (stretches out for you), and be not divided among yourselves; and remember with gratitude Allah's favour on you; for ye were enemies and He joined your hearts in love, so that by His Grace, ye became brethren; and ye were on the brink of the pit of Fire, and He saved you from it. Thus doth Allah make His Signs clear to you: That ye may be guided.

Sura Fuṣṣilat 41:23

وَذَٰلِكُمْ ظَنُّكُمُ ٱلَّذِى ظَنَنتُم بِرَبِّكُمْ أَرْدَىٰكُمْ فَأَصْبَحْتُم مِّنَ ٱلْخَٰسِرِينَ

wa-dhālikum ẓannukumu alladhī ẓanantum birabbikum ardākum fa-aṣbaḥtum mina l-khāsirīna

"But this thought of yours which ye did entertain concerning your Lord, hath brought you to destruction, and (now) have ye become of those utterly lost!"