Shaykh al-Islām Ibn Taymiyyah (may Allah have mercy upon him) said:
The
religion of Islām is established upon two fundamental principles: that we
worship Allāh alone without any partners, and that we [only] worship Him with
what He legislated in the religion.
Source:
Majmū al-Fatāwá (1/89)
Translator: Abū ʿAffān ʿAbdulQādir
Pristine
Methodology (Pure Salafiyyah)
