An-Nisa 4:21

وَكَيْفَ تَأْخُذُونَهُۥ وَقَدْ أَفْضَىٰ بَعْضُكُمْ إِلَىٰ بَعْضٍ وَأَخَذْنَ مِنكُم مِّيثَـٰقًا غَلِيظًا

Wakayfa takhudhūnahu waqad afḍā baʿḍukum ilā baʿḍin wa-akhadhna minkum mīthāqan ghalīẓan

And how could you take it while you have gone in unto each other and they have taken from you a solemn covenant?