as for the trick of khul and sloughing they are the same but they differ in that khul is specific to action. so if they lead the respondent to abandon the limits of the shariah and its obligations they say you have reached the level of khul. as for sloughing it is specific to belief which is the severing of religion. so if they extract that from his heart they call that sloughing and this level is called the greater attainment. so this is the detail of their gradual creation and their seduction so let the one who looks at it consider it and seek forgiveness from allah for going astray in his religion.
وأما حيلة الخلع والسلخ وهي هما متفقان وانما يفترقان في ان الخلع يختص بالعمل فإذا أفضوا بالمستجيب إلى ترك حدود الشرع وتكاليفه يقولون وصلت الى درجة الخلع أما السلخ فيختص بالاعتقاد الذي هو خلع الدين فاذا انتزعوا ذلك من قلبه دعوا ذلك سلخا وسميت هذه الرتبة البلاغ الأكبر فهذا تفصيل تدريجهم الخلق واستغوائهم فلينظر الناظر فيه وليستغفر الله من الضلال في دينه