"The testimony of the faith L¯a il¯aha illa’Ll¯ah (There is no divinity but the Divine) is a statement concerning knowledge, not sentiments or the will. It contains the quintessence of metaphysical knowledge concerning the Principle and its manifestation. The Prophet of Islam has said, “Say L¯a il¯aha illa’Ll¯ah and be delivered” referring directly to the sacramental quality of principial knowledge."
January 1, 1970
https://en.wikiquote.org/wiki/Seyyed_Hossein_Nasr