Answer:
(Fatwa: 1668/1286/B=1433)
You can read this book. It is very nice book for one’s inner purity. However, if you find any doubt or vagueness or some complication, then you should consult the Ulama.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
