According to traditional Arab genealogy, the Banu al-Qayn was founded by a certain al-Nu'man ibn Jasr, who was known as al-Qayn (the iron smith).[1] However, according to all historical indications, the tribe was strictly Bedouin and its tribesmen did not involve themselves in metalwork.[1] The Banu al-Qayn formed part of the Quda'a, a large tribal confederation.[1]