On Pseudo-Sufi Deviance
Imam Abu Abdullah al-Haffar al-Maliki :
Indeed, this group that attributes itself to Sufism in this time and in these regions has caused great harm to the religion (Islam). Their corruption has spread throughout the lands of the Muslims, particularly in the fortresses and villages far from the urban centers. There, they manifest the inner deviance they harbor—such as declaring permissible what Allah has forbidden, and fabricating lies against Allah and His Messenger. In short, they are a people whom Satan has appointed as successors to undo the bonds of Islam, nullify it, and demolish its foundations.
إن هذه الطائفة المنتمية للتصوف في هذا الزمان وفي هذه الأقطار , قد عظُم الضرر بهم في الدين , وفشت مفسدتهم في بلاد المسلمين ولاسيما في الحصون والقرى البعيدة عن الحضرة هنالك , يُظهرون ما انطوى عليه باطنهم من الضلال , من تحليل ما حرم الله والافتراء عليه وعلى رسوله . وبالجملة فهم قوم استخلفهم الشيطان على حَلِّ عُرى الإسلام وإبطاله , وهدم قواعده
Source : Al-Mi’yar Al-Muarab 11/42