Sahih al-Bukhari, Hadith 4711 ⓘ
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'.
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.
also referenced under: Book 65, Hadith 4711 (In-Book) & Volume 6, Book 60, Hadith 234 (USC-MSA)