Question

And never would your Lord have destroyed the cities until He had sent to their mother [i.e., principal city] a messenger reciting to them Our verses. And We would not destroy the cities except while their people were wrongdoers. al-Qasas Part 20

Accepted Answer

وَمَا كَانَ رَبُّكَ مُهْلِكَ ٱلْقُرَىٰ حَتَّىٰ يَبْعَثَ فِىٓ أُمِّهَا رَسُولًا يَتْلُوا۟ عَلَيْهِمْ ءَايَٰتِنَا وَمَا كُنَّا مُهْلِكِى ٱلْقُرَىٰٓ إِلَّا وَأَهْلُهَا ظَٰلِمُونَ 59

Translation	And never would your Lord have destroyed the cities until He had sent to their mother [i.e., principal city] a messenger reciting to them Our verses. And We would not destroy the cities except while their people were wrongdoers.
Ayah	وَمَا كَانَ رَبُّكَ مُهْلِكَ ٱلْقُرَىٰ حَتَّىٰ يَبْعَثَ فِىٓ أُمِّهَا رَسُولًا يَتْلُوا۟ عَلَيْهِمْ ءَايَٰتِنَا وَمَا كُنَّا مُهْلِكِى ٱلْقُرَىٰٓ إِلَّا وَأَهْلُهَا ظَٰلِمُونَ
Sorh	al-Qasas
AyahN	59
Part	Part 20

Cities وَمَا Lord Destroyed Mother I.E Principal Messenger