Faṣl fī Tazkiyat al-Nafs
The Epistle on the Purification of the Soul
Ibn Taimiyaفصل في تزكية النفس — ابن تيمية
About
A brief epistle by Ibn Taymiyya setting forth the foundations of inner purification: sincerity, constant repentance, remembrance of Allah, and conformity to the Quran and the Sunnah, while warning against ascetic excesses and spiritual innovations.