Hashim al-Shaykh (Arabic: هاشم الشيخ), also known by his nom de guerre Abu Jaber Shaykh (Arabic: أبو جابر الشيخ) is a Syrian rebel commander and senior leader of Tahrir al-Sham.
[1] Abu Jaber received a bachelor's degree in mechanical engineering at the University of Aleppo.
He led a subgroup within Harakat Fajr ash-Sham al-Islamiya called the Mus‘ab ibn 'Umair Battalion, which became one of the founding members of Ahrar al-Sham.
[1] In September 2014, the founder and commander of Ahrar al-Sham, Hassan Aboud, was assassinated along with 45 of his fighters in a bombing in the Idlib Governorate.
[5] On 15 February 2016, during the northern Aleppo offensive, 8 rebel factions pledged allegiance to Abu Jaber and established the Army of Aleppo to fight the Syrian Armed Forces and the Syrian Democratic Forces, including the Army of Revolutionaries.