بكر بن وائل
The "Ḥums" were the Quraysh, Banu Kinanah, Banu Khuza'a and Banu 'Amir. They did not perform the pilgrimage outside the zone of Mecca's "haram", thus excluding Mount Arafat. They also developed certain dietary and cultural restrictions. According to "Kitab al-Muhabbar", the "Ḥilla" denoted most of the Banu Tamim, Qays, Rabi`ah, Qūḍa'ah, Ansar, Khath'am, Bajīlah, Banu Bakr ibn Abd Manat, Hudhayl, Asad, Tayy and Bariq. The "Ṭuls" comprised the tribes of Yemen and Hadramaut, 'Akk, Ujayb and Īyād. The "Basl" recognised at least eight months of the calendar as holy. There was also another group which didn't recognize the sanctity of Mecca's "haram" or holy months, unlike the other four.