Banu Bakr
The Banu Bakr bin Wa'il or simply Banu Bakr ( "") were an Arabian tribe belonging to the large Rabi'ah branch of Adnanite tribes, which also included Abdul Qays, Anazzah, Taghlib, Banu Shayban and Bani Hanifa. The tribe is reputed to have engaged in a 40-year war before Islam with its cousins from Taghlib, known as the War of Basous. The pre-Islamic poet, Tarafah was a member of Bakr.