↑"Palestinian Salafists pose dangerous new problem for Hamas". Guardian: The conflict with the militant Salafists – totalling a few hundred at most – has led to a Hamas crackdown and, in reprisal, three rockets fired by the Salafists at Israel. June 10, 2015. Retrieved June 12, 2015.
↑"ISIS: We Are Operating in Gaza". Vocative: The extremist terror organization is establishing a toehold inside Gaza, despite Hamas' claims to the contrary. June 9, 2014. Archived from the original on August 16, 2021. Retrieved June 2, 2015.
↑Beauchamp, Zack (July 2, 2015). "ISIS is threatening Hamas in Gaza". Both "the secular nationalism" of Fatah and "the Islamist nationalism of [Hamas] have run aground," Hussein Ibish, Senior Resident Scholar at the Arab Gulf States Institute, explains. "So in come the anti-nationalists, who say 'no, no, that's all wrong. It's all about God, Umma, and the caliphate.'" That is ISIS's opening: Palestinians, especially the younger generation, are fed up with their current leaders and looking for something new. Retrieved July 7, 2015.
↑Lamb, Franklin (June 21, 2014). "Article: Will ISIS Create al-Sham Caliphate & Liberate Palestine?". MWCNews: One need not be prescient to understand the unfolding "Jihadi Spring" is fueling the plans and perhaps destiny of ascendant Islamists in this region with the increasing help of in-country nationalists, including remnants of the Iraqi Baath Party. Retrieved June 2, 2015.
↑Jawad Al-Tamimi, Aymenn (June 2, 2015). "New Salafi Jihadi Group in Gaza". A new group in Gaza calling itself the Sheikh Omar Hadid Brigade claimed credit for rocket attacks on Ashdod in late May. Retrieved June 4, 2015.