Sahih al-Bukhari 4711
Sahih al-Bukhari · Book 65: Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh)) · "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)
Narrated `Abdullah:
حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ ، حَدَّثَنَا سُفْيَانُ ، أَخْبَرَنَا مَنْصُورٌ ، عَنْ أَبِي وَائِلٍ ، عَنْ عَبْدِ اللَّهِ ، قَالَ كُنَّا نَقُولُ لِلْحَىِّ إِذَا كَثُرُوا فِي الْجَاهِلِيَّةِ أَمِرَ بَنُو فُلاَنٍ . حَدَّثَنَا الْحُمَيْدِيُّ حَدَّثَنَا سُفْيَانُ وَقَالَ أَمِرَ .
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'.