Al-Awwam bin Mohammad bin Yusuf Al-Zajaj (Arabic: العوام بن محمد بن يوسف الزَجاج), known as Abu al-Bahlul (Arabic: ابو البهلول، Father of Al-Bahlul)[1] was a Shiite member of the Abdul Qays tribe in Bahrain who overthrew Ismaili Qarmatian rule of the islands around 1058.
The Qarmatians based in Baghdad then decided to remove bin Arham and replaced him with a new governor tasked to reassert his authority by arresting Abu al-Bahlul and his supporters.
Meanwhile, a third leader, Abdullah bin Ali Al Uyuni, fled the Al-Ahsa Oasis to plot another revolt in Al-Oyun, a village to the north, culminating in a seven-year siege of the city by the Uyunids and Seljuk Turks ending in 1067.
Abu al-Bahlul and Al Uyuni each wrote to the Abbasids for support in driving the Qarmatians out for good and unifying the region under their rule.
After Ibn Ayyash's death, his son Zakaria invaded Bahrain and killed Abu al-Bahlul, thus uniting Awal and Qatif for a time, before they were in turn captured by Abdullah bin Ali Al Uyuni, the founder of the Uyunid Emirate.