Arabic names have historically been based on a long naming system. Many people from Arabic-speaking and also non-Arab Muslim countries have not had given, middle, and family names but rather a chain of names. This system remains in use throughout the Arab and Muslim worlds.
Abū al-Faraj Muḥammad ibn Isḥāq an-Nadīm (Arabic: ابو الفرج محمد بن إسحاق النديم), also Ibn Abī Yaʿqūb Isḥāq ibn Muḥammad ibn Isḥāq al-Warrāq, and commonly known by the nasab (patronymic) Ibn an-Nadīm; died 17 September 995 or 998), was an important Muslim bibliographer and biographer of Baghdad who compiled the encyclopedia Kitāb al-Fihrist (The Book Catalogue).
The Habr Garhajis also contemporarily known as the Garhajis (Somali: Habar Garxajis, Arabic: غرحاجس, Full Nasab: Ismā'īl al Qadhi ibn ash-Shaykh Isḥāq ibn Aḥmad) is a major Northern Somali clan of the wider Isaaq clan family. They are the traditional holders of the Isaaq Sultanate and Habr Yunis Sultanate since the 18th century. As descendants of Ismail bin Sheikh Isaaq, its members form a part of the Habar Magaadle confederation, and they constitute one of the largest sub-clans of the Isaaq. The Garhajis are divided into two major sub-clans: the Habr Yunis (Sa'īd Ismail) and Eidagale (Da'ud Isma'īl). They are traditionally nomadic pastoralists, merchants and skilled poets.