I just recently bought this book called "purification of the soul" and it's the compiled works of Ibn Qayyim (R.H), Ibn Hajar (R.H) and Abu Hamid al-Ghazali (R.H) by Ahmad Fareed i have no idea who he is and i know that some of the works of al-Ghazali may not be 100% authentic (correct me if im wrong). So my question was is this book authentic? since i've seen they do not sell this book @ salafibookstore and other authentic bookstores.
jazakallah khair
Umm Yahya bin Muhammed
Muhammed bin Sireen said: Verily this knowledge is religion, therefore, let all of you look to whom he takes his knowledge from. (Sunan Ad Daramee)