The Ruling upon Takfīr
Al-ʿAllāmah ʿAbd al-ʿAzīz ibn ʿAbdullāh ibn Bāz, Al-ʿAllāmah Muḥammad Nāṣir al-Dīn al-Albānī, Al-ʿAllāmah Muḥammad ibn Ṣāliḥ al-ʿUthaymīn
A lengthy fatwá from the three great scholars of our era concerning the issue of takfīr, kufr dūna kufr (disbelief less than disbelief), secular laws, and more! This serves as a deathblow to the Neo-Khawārij of our era who seek to revive the daʿwah of the Khawārij of old.
Establish the Islamic State in your heart; it will be established for you upon your land.