The exceptional book “Sharḥ al-Uṣūl al-Sittah” [شرح الأصول الستة] is a short treatise outlining six great and mighty principles of the dīn of Islām through which the errors of extremists of all kinds are made plain. These six principles comprise: a) sincerity in worship, b) obligation of unity, c) giving obedience to those in authority, d) knowledge of the true scholars of the religion, e) knowledge of the true awliyāʾ (friends) of Allāh and f)  recognising and repelling a doubt related to a person’s ability in following the Book and the Sunnah.