“[I]t is an obligation upon every Muslim to fight in the Way of Allah as per his capability. Whoever is able to join the mujahideen he should join their ranks, if not, he should look around for a head of kufr (disbeliever) by which targeting it will restrain the evil might of those who disbelieve.”Ibrahim al-Rubaish, “Allah Will Restrain the Evil Might of Those Who Disbelieve,” Inspire Issue 11 (2013): 15.