"And when We decide to destroy a town (population), We (first) send a definite order (to obey Allāh and be righteous) to those among them [or We (first) increase in number those of its population] who lead a life of luxury. Then they transgress therein..." (V.17:16) Sahih al-Bukhari 4711

Arabic hadith text
حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا سُفْيَانُ، أَخْبَرَنَا مَنْصُورٌ، عَنْ أَبِي وَائِلٍ، عَنْ عَبْدِ اللَّهِ، قَالَكُنَّا نَقُولُ لِلْحَىِّ إِذَا كَثُرُوا فِي الْجَاهِلِيَّةِ أَمِرَ بَنُو فُلاَنٍ‏.‏ حَدَّثَنَا الْحُمَيْدِيُّ حَدَّثَنَا سُفْيَانُ وَقَالَ أَمِرَ
Translation
Narrated `Abdullah

During the Pre-lslamic period of ignorance if any tribe became great in number, we used to say, "Amira the children of so-and-so." Narrated Al-Humaidi: Sufyan narrated to us something and used the word 'Amira'.