Surah An-Nahl 16:92

وَلَا تَكُونُوا۟ كَٱلَّتِى نَقَضَتْ غَزْلَهَا مِنۢ بَعْدِ قُوَّةٍ أَنكَـٰثًا تَتَّخِذُونَ أَيْمَـٰنَكُمْ دَخَلًۢا بَيْنَكُمْ أَن تَكُونَ أُمَّةٌ هِىَ أَرْبَىٰ مِنْ أُمَّةٍ ۚ إِنَّمَا يَبْلُوكُمُ ٱللَّهُ بِهِۦ ۚ وَلَيُبَيِّنَنَّ لَكُمْ يَوْمَ ٱلْقِيَـٰمَةِ مَا كُنتُمْ فِيهِ تَخْتَلِفُونَ

And do not be like she who untwisted her spun thread after it was strong [by] taking your oaths as [means of] deceit between you because one community is more plentiful [in number or wealth] than another community. Allāh only tries you thereby. And He will surely make clear to you on the Day of Resurrection that over which you used to differ.

Translation: Saheeh International

Tafsir

And do not be like her who undoes spoils her yarn that which she has spun after having made it strong having set and spun it breaking it up into fibres ankāthan is a circumstantial qualifier ankāth is the plural of nikth and means that which is undone yunkathu — this was an imbecile Meccan woman who used to spin all …

Excerpt from Tafsir al-Jalalayn, commentary on 16:92, via Quran.com. The reader has the full commentary and 9 more tafsirs.