AuthorʿAlī ibn Abī Ṭālibraḍiyallāhu ʿanhu2 quotes attributed to ʿAlī ibn Abī Ṭālib.Their life, on people.islamic.network →The calamity of knowledge is forgetfulness.— Sayyadina Ali Ibn Abi Talib ﵁The calamity of knowledge is forgetfulness.— ʿAlī ibn Abī Ṭālib رَضِيَ ٱللَّٰهُ عَنْهُ - Quoted from Liberating the Soul: A Guide for Spiritual Growth' by Shaykh Nazim Adil al-Haqqani ق