This is statement by the ISIL spokesperson Abu Muhammad al-’Adnani, seeks to affirm the Salafi Jihadi credentials of the ISIL and reasons for their differences with Al-Qaeda and their official affiliate Jabhat al-Nosra (the latter accused of deviating from the Salafi methodology):
So what has changed to cause the leadership of Al-Qāʿidah to cause us grief, and to label us as the descendants of Ibn Muljim, and to label us as Khawārij?! Fear Allah regarding your selves! Fear Allah regarding the Mujāhidīn! What is your evidence for this that you incite people against them, you cause their blood to flow, you work for the destruction of their State and standing in its way! Tell us, by your Lord, what is your evidence?!