Quran 2:102 – Is It Permissible To Learn Nafsi Uloom?
It has already been explained in Al-Bayan footnote 248 for verse 2:102. 248 : The actual words are: فَلَا تَكۡفُر. the negative imperative is as per the consequences. The implication is that the discipline they teach is a double-edged sword; it is more probable that people will use it for evil purposes and as a result get themselves involved in disbelief and polytheism.